4MA0 Higher January 2017 Paper 3R Q2
2 Each exterior angle of a regular polygon is 18°
Work out the number of sides of this regular polygon.
(2)
| Scheme | Marks |
|---|---|
360 ÷ 18 or \(\dfrac{(2n - 4)90}{n} = 162\) or \(\dfrac{(n - 2)180}{n} = 162\) | M1 |
| 20 | A1 |
| (2) | |
| (2 marks) |