Geometry and measuresKey Stage 3

Angles in parallelograms and rhombuses

Use equal opposite angles and supplementary adjacent angles.

  • Opposite angles are equal.
  • Adjacent angles add to .
  • A rhombus also has four equal sides.

Example 1

Find angle in the parallelogram.

Opposite angles in a parallelogram are equal.

Example 2

Find angle in the rhombus.

Adjacent angles in a rhombus add to 180°.

Your turn

Question 1

Find angle in the parallelogram.

Check answer
Opposite angles in a parallelogram are equal.
Question 2

Find angle in the rhombus.

Check answer
Adjacent angles in a rhombus add to 180°.
Question 3

Find angle in the parallelogram.

Check answer
Opposite angles in a parallelogram are equal.
Question 4

Find angle in the rhombus.

Check answer
Adjacent angles in a rhombus add to 180°.
Question 5

Find angle in the parallelogram.

Check answer
Opposite angles in a parallelogram are equal.
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