Higher January 2022 Paper 2 Q4
4 Each side of a regular octagon has a length of 18 mm, correct to the nearest 0.5 mm
Diagram NOT accurately drawn
(a) Write down the lower bound of the length of each side of the octagon. (1)
(b) Write down the upper bound of the length of each side of the octagon. (1)
| Scheme | Marks |
|---|---|
| 17.75 | B1 |
| (1) |
Notes
B1: oe
| Scheme | Marks |
|---|---|
| 18.25 | B1 |
| (1) | |
| (2 marks) |
Notes
B1: oe \(18.24\dot{9}\) (allow 18.249…)
SC B1 for 17.5 in (a) and 18.5 (or \(18.4\dot{9}\)) in (b)