Foundation June 2019 Paper 1R Q16
16 Each interior angle of a regular polygon is 162°
Work out the number of sides the polygon has.
(3)
| Scheme | Marks |
|---|---|
| Ext \(\angle\) = 180 – 162 (= 18) oe or \(\dfrac{(n - 2)180}{n} = 162\) oe | M1 |
| 360 ÷ “18” oe or \(18n = 360\) | M1 |
| 20 | A1 |
| (3) | |
| (3 marks) |