4MA0 Higher June 2014 Paper 4 Q3
3
Diagram NOT accurately drawn
(a) A circle has a radius of 7.6 cm.
Work out the area of the circle.
Give your answer correct to 3 significant figures. (2)
Work out the area of the circle.
Give your answer correct to 3 significant figures. (2)
The radius, 7.6 cm, is correct to 1 decimal place.
(b)
(i) Write down the upper bound of the radius.
(ii) Write down the lower bound of the radius.
(2)| Scheme | Marks |
|---|---|
| \(\pi \times 7.6^2\) or \(\pi \times 57.76\) | M1 |
| 181 | A1 |
| (2) |
Notes
A1: for 181 – 182
| Scheme | Marks |
|---|---|
| (i) Answer: 7.65 | B1 |
| (ii) Answer: 7.55 | B1 |
| (2) | |
| (4 marks) |
Notes
B1: accept \(7.64\dot{9}\)