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Angles in Polygons worksheet

4 GCSE practice questions with answers, free to print. Every sheet is generated, so you can make a fresh one whenever you need it.

4 questions 13 marks Sheet 1
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  1. 3 marks

    A regular polygon has \(10\) sides.

    (a)

    Work out the size of each exterior angle.

    (b)

    Work out the size of each interior angle.

  2. 4 marks

    Here is a regular nonagon.

    Regular polygon with one interior angle marked xx
    (a)

    Find the size of one exterior angle of the nonagon.

    (b)

    Find the size of the angle marked \(x\).

  3. 3 marks

    Each interior angle of a regular polygon is \(108^\circ\).

    Find the number of sides the polygon has.

  4. 3 marks

    A regular polygon has \(40\) sides.

    (a)

    Work out the size of each exterior angle.

    (b)

    Work out the size of each interior angle.

Answers

  1. (a) \(36^\circ\)
    (b) \(144^\circ\)
  2. (a) \(40^\circ\)
    (b) \(140^\circ\)
  3. \(5\ \text{sides}\)
  4. (a) \(9^\circ\)
    (b) \(171^\circ\)

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