1MA0 Higher June 2013 Paper 2 Q24
24 \(ABC\) is a triangle.
Diagram NOT accurately drawn
(a) Work out the area of triangle \(ABC\).
Give your answer correct to 3 significant figures. (2)
Give your answer correct to 3 significant figures. (2)
(b) Work out the length of the side \(AB\).
Give your answer correct to 3 significant figures. (3)
Give your answer correct to 3 significant figures. (3)
| Answer | Mark | Notes |
|---|---|---|
| 18.2 | 2 | M1 for \(\frac{1}{2} \times 6 \times 7 \times \sin 60\) A1 for answer in range 18.1 to 18.2 |
| Answer | Mark | Notes |
|---|---|---|
| 6.56 | 3 | M1 for \(6^2 + 7^2 - 2 \times 6 \times 7 \times \cos 60\) M1 for correct order of operation eg \(36 + 49 - 42\) (=43) A1 for answer in range 6.55 to 6.56 |