4MA0 Foundation June 2014 Paper 2 Q16
16
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 |
|---|---|
| \(\pi \times 7.6^2\) | M1 |
| 181 | A1 |
| (2) |
Notes
A1: 181(.4583...) accept answers 181 − 182 inclusive
| Scheme | Marks |
|---|---|
| (i) 7.65 | B1 |
| (ii) 7.55 | B1 |
| (2) | |
| (4 marks) |
Notes
B1: accept \(7.64\dot{9}\)