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Angle bisector (UEB uncontracted)
by RnibThis page shows three small diagrams. There is a locator dot shown, which will be at the top left when the image is the correct way up. The diagrams are on the right of the page with instructions to the left. The first image is an angle with a compass centre point at its vertex. A wide arc has been drawn from this point. The second image shows compass centre points where the wide arc crossed the arms. A second and third arc has been drawn from these points. These arcs intersect each other. The last image shows a line drawn through the intersecting arcs to the vertex. This line bisects the original angle.
Angle facts (large print)
by New College WorcesterThese four pages show diagrams of straight lines with marked angles. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. On the first page the top diagram is a horizontal line with a second line going up and to the right. The middle diagram is two diagonal lines crossing each other. The bottom diagram is the same but with the angles marked differently. The last three pages all have the same two patterns of lines. On the top of each page there are two horizontal arrows pointing to the right with a diagonal line going from the bottom left to the top right of the image. On the bottom of each page there are two vertical arrows pointing up with a diagonal line going from the top left to the bottom right of the image. The angles formed by these lines are marked by letters. This is different on each page.
Angle facts (UEB contracted)
by New College WorcesterThese four pages show diagrams of straight lines with marked angles. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. On the first page the top diagram is a horizontal line with a second line going up and to the right. The middle diagram is two diagonal lines crossing each other. The bottom diagram is the same but with the angles marked differently. The last three pages all have the same two patterns of lines. On the top of each page there are two horizontal arrows pointing to the right with a diagonal line going from the bottom left to the top right of the image. On the bottom of each page there are two vertical arrows pointing up with a diagonal line going from the top left to the bottom right of the image. The angles formed by these lines are marked by letters. This is different on each page.
Angle facts (UEB uncontracted)
by New College WorcesterThese four pages show diagrams of straight lines with marked angles. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. On the first page the top diagram is a horizontal line with a second line going up and to the right. The middle diagram is two diagonal lines crossing each other. The bottom diagram is the same but with the angles marked differently. The last three pages all have the same two patterns of lines. On the top of each page there are two horizontal arrows pointing to the right with a diagonal line going from the bottom left to the top right of the image. On the bottom of each page there are two vertical arrows pointing up with a diagonal line going from the top left to the bottom right of the image. The angles formed by these lines are marked by letters. This is different on each page.
Angle in a semicircle is 90 degrees (large print)
by New College WorcesterThis image shows a circle which contains a right angle triangle. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The long side of the triangle is the diameter of the circle.
Angle in a semicircle is 90 degrees (UEB contracted)
by New College WorcesterThis image shows a circle which contains a right angle triangle. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The long side of the triangle is the diameter of the circle.
Angle in a semicircle is 90 degrees (UEB uncontracted)
by New College WorcesterThis image shows a circle which contains a right angle triangle. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The long side of the triangle is the diameter of the circle.
Angle properties (large print)
by New College WorcesterThese two pages each have three sets of lines making angles. Each angle is named and its property described. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up.
Angle properties (UEB contracted)
by New College WorcesterThese two pages each have three sets of lines making angles. Each angle is named and its property described. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up.
Angle properties (UEB uncontracted)
by New College WorcesterThese two pages each have three sets of lines making angles. Each angle is named and its property described. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up.
Angle sum of triangle (large print)
by New College WorcesterThis page shows a triangle and two lines. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The triangle has its internal angles labelled with letters. There is a diagonal line to the right which is parallel with the left side of the triangle. The angles the line makes with the right side of the triangle and the base line are also labelled with letters.
Angle sum of triangle (UEB contracted)
by New College WorcesterThis page shows a triangle and two lines. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The triangle has its internal angles labelled with letters. There is a diagonal line to the right which is parallel with the left side of the triangle. The angles the line makes with the right side of the triangle and the base line are also labelled with letters.
Angle sum of triangle (UEB uncontracted)
by New College WorcesterThis page shows a triangle and two lines. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The triangle has its internal angles labelled with letters. There is a diagonal line to the right which is parallel with the left side of the triangle. The angles the line makes with the right side of the triangle and the base line are also labelled with letters.
Angles and Lines - identification marks of a rectangle (tactile)
by RnibThis diagram shows a rectangle, with arrows indicating parallel sides, and squares indicating perpendicular sides.
Angles and Lines - the angles of a triangle (tactile)
by RnibThis diagram shows a triangle, with each angle cut out and fitted together to show how they make a total of 180 degrees. Labels and simple shapes guide the user through the diagram.
Angles and Shapes - kite and parallelogram (tactile)
by RnibThis simple diagram shows two shapes - a kite and a parallelogram.
Angles in polygons (tactile)
by Adrian FarnsworthThese ten pages each show a different polygon with angle labelled in braille.
Angles in quadrilaterals (large print)
by RnibThese pages show two labelled quadrilaterals on each page. It is a multi-page image set on two pages. There is a locator dot shown on each page, which will be at the top left when the image is the correct way up. Work out what the value is of the angles marked with a letter. The top quadrilateral is a square with four equal sides. The bottom quadrilateral is a rectangle. The opposite sides are the same length. The top diagram is a parallelogram. The opposite sides are the same length and parallel. The bottom diagram is an isosceles trapezium. One pair of opposite sides is the same length and the other pair of opposite sides are parallel.
Angles in quadrilaterals (UEB contracted)
by RnibThese pages show two labelled quadrilaterals on each page. It is a multi-page image set on two pages. There is a locator dot shown on each page, which will be at the top left when the image is the correct way up. Work out what the value is of the angles marked with a letter. The top quadrilateral is a square with four equal sides. The bottom quadrilateral is a rectangle. The opposite sides are the same length. The top diagram is a parallelogram. The opposite sides are the same length and parallel. The bottom diagram is an isosceles trapezium. One pair of opposite sides is the same length and the other pair of opposite sides are parallel.
Angles in quadrilaterals (UEB uncontracted)
by RnibThese pages show two labelled quadrilaterals on each page. It is a multi-page image set on two pages. There is a locator dot shown on each page, which will be at the top left when the image is the correct way up. Work out what the value is of the angles marked with a letter. The top quadrilateral is a square with four equal sides. The bottom quadrilateral is a rectangle. The opposite sides are the same length. The top diagram is a parallelogram. The opposite sides are the same length and parallel. The bottom diagram is an isosceles trapezium. One pair of opposite sides is the same length and the other pair of opposite sides are parallel.
Angles in regular polygons (large print)
by RnibThese pages show labelled geometric shapes on each page. It is a multi-page image set on two pages. There is a locator dot shown on each page, which will be at the top left when the image is the correct way up. Calculate the values of the angles marked with a letter. This page has three shapes on it. There is a triangle at the top, a square in the middle and a pentagon at the bottom of the page. The triangle and the square have a line extending from the baseline to the right. The internal angle in the bottom right of the shape is marked in degrees. The external angle between the extended line and the shape's side is also marked in degrees. The pentagon has a similar arrangement but it is the top line that is extended and so the angles are marked in the top right of the shape. This page has two shapes on it. There is a hexagon at the top and an octagon at the bottom of the page. The shapes have a line extending from the baseline to the right. The internal angle in the bottom right of the shape is marked in degrees. The external angle between the extended line and the shape's side is also marked in degrees.
Angles in regular polygons (UEB contracted)
by RnibThese pages show labelled geometric shapes on each page. It is a multi-page image set on two pages. There is a locator dot shown on each page, which will be at the top left when the image is the correct way up. Calculate the values of the angles marked with a letter. This page has three shapes on it. There is a triangle at the top, a square in the middle and a pentagon at the bottom of the page. The triangle and the square have a line extending from the baseline to the right. The internal angle in the bottom right of the shape is marked in degrees. The external angle between the extended line and the shape's side is also marked in degrees. The pentagon has a similar arrangement but it is the top line that is extended and so the angles are marked in the top right of the shape. This page has two shapes on it. There is a hexagon at the top and an octagon at the bottom of the page. The shapes have a line extending from the baseline to the right. The internal angle in the bottom right of the shape is marked in degrees. The external angle between the extended line and the shape's side is also marked in degrees.
Angles in regular polygons (UEB uncontracted)
by RnibThese pages show labelled geometric shapes on each page. It is a multi-page image set on two pages. There is a locator dot shown on each page, which will be at the top left when the image is the correct way up. Calculate the values of the angles marked with a letter. This page has three shapes on it. There is a triangle at the top, a square in the middle and a pentagon at the bottom of the page. The triangle and the square have a line extending from the baseline to the right. The internal angle in the bottom right of the shape is marked in degrees. The external angle between the extended line and the shape's side is also marked in degrees. The pentagon has a similar arrangement but it is the top line that is extended and so the angles are marked in the top right of the shape. This page has two shapes on it. There is a hexagon at the top and an octagon at the bottom of the page. The shapes have a line extending from the baseline to the right. The internal angle in the bottom right of the shape is marked in degrees. The external angle between the extended line and the shape's side is also marked in degrees.
Angles in the same segment are equal (large print)
by New College WorcesterThis is an image of a circle containing two triangles. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. Two angles of each triangle touch the circle circumference. The other angle is where the triangles meet in the middle of the diagram.
Angles in the same segment are equal (UEB contracted)
by New College WorcesterThis is an image of a circle containing two triangles. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. Two angles of each triangle touch the circle circumference. The other angle is where the triangles meet in the middle of the diagram.