Printable · GCSE Foundation · ages 14-16
Properties of triangles and quadrilaterals worksheet — GCSE Foundation
Fifteen questions on "properties of triangles and quadrilaterals" — DfE statement G4. Print it, or print three versions so neighbours cannot copy by letter; the key gives the letter for each version.
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Properties of triangles and quadrilaterals worksheet — GCSE Foundation
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- 1.Quadrilateral WXYZ has WX parallel to ZY, and WZ = XY (the two non-parallel sides are equal in length). Give a reason why angle W = angle X.
- 2.A rhombus has all four sides equal in length. Write down how many pairs of parallel sides a rhombus has.
- 3.Write down the name given to a quadrilateral that has exactly one pair of parallel sides.
- 4.In an isosceles triangle each of the two base angles is 46°. Work out the size of the angle at the apex.
- 5.Write down the name given to a quadrilateral with exactly one pair of parallel sides.
- 6.Write down how many right angles a right-angled triangle has.
- 7.In a kite, one pair of opposite angles are equal in size. In kite WXYZ, angle X = 40° and angle Z = 100° are the two angles that are NOT equal to each other. The other two angles, W and Y, are equal to each other. Work out the size of angle W.
- 8.Write down the number of lines of symmetry a rhombus has.
- 9.Write down which one of these quadrilaterals always has diagonals that are equal in length and that cross at right angles.
- 10.ABCD is an isosceles trapezium. The sides AB and DC are parallel, and the two sloping sides AD and BC are equal in length. Angle D is 112°. Work out the size of angle B.
- 11.Write down the name given to a triangle whose three sides are all the same length.
- 12.Write down which one of these statements about quadrilaterals is true.
- 13.A picture frame is a rhombus with a diagonal of 16 cm and a diagonal of 12 cm. The two diagonals meet at right angles at their midpoints. Work out the length of one side of the rhombus.
- 14.In parallelogram ABCD the vertices are labelled in order round the shape, so angle A and angle B are at the two ends of the same side. Angle A is 70°. Work out the size of angle B.
- 15.Write down the mathematical name for a quadrilateral that has exactly one pair of parallel sides.
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