Foundation June 2017 Paper 1 Q23
23 A regular polygon has an exterior angle of \(20^\circ\)
Work out the number of sides of the polygon. [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(360 \div 20\) or \(20 \times 18 = 360\) | M1 | oe |
| 18 | A1 |
Additional guidance
If using interior angle method, must get as far as \(360 \div 20\) for M1