Foundation June 2025 Unit 1 Q8
8. In this question, you will be assessed on the quality of your organisation, communication and accuracy in writing.
A rectangle and a semicircle are joined to make the shape below.
The height of the rectangle is 10 cm.
The area of the rectangle is 400 cm\(^2\).
Diagram not drawn to scale
Calculate the radius of the semicircle.
You must show all your working. [3 + 2 OCW]
| Scheme | Marks | Comments |
|---|---|---|
| (Length of rectangle or diameter of semicircle =) 400 ÷ 10 | M1 | |
| 40 (cm) | A1 | Allow an embedded answer, unless contradicted by length or diameter \(\neq\) 40 (cm) |
| (Radius = 40 ÷ 2 =) 20 (cm) | B1 | FT ‘their stated or derived 40’ provided ≠ 400, 360, 180, 90 or 10. |
| Organisation and Communication. | OC1 | For OC1, candidates will be expected to:
|
| Accuracy of writing. | W1 | For W1, candidates will be expected to:
|