Links to other Year 8 Revision exercises - Ex 2.1 | Ex 2.2 | Ex 2.3 | Ex 2.4 | Ex 3.1 | Ex 3.3 | Ex 3.4 | Ex 3.5
These answers are given merely to help with revision. In order to get full marks all working out must be shown.
| 1 | a) | 24°; 156° | |
| b) | 30 | ||
| 3 | a) | 100° | |
| b) | 102° | ||
| 4 | a) | 50 cm² | |
| b) | 145.2 cm² | ||
| 5 | a) | 2.5 cm | |
| b) | 6.2 cm | ||
| 7 | a) | 48 cm² | |
| b) | 74 cm² | ||
| 9 | a) | i) | B |
| ii) | D | ||
| iii) | C | ||
| b) | Very strong positive correllation | ||
| 10 | a) | | |
| b) | Yes; moderate negative correlation | ||
| c) | About 11 seconds | ||