Foundation November 2018 Unit 1 Q11
11. In the diagram below,
- ABCD is a square,
- ADE is an equilateral triangle,
- EAF is a straight line.
Diagram not drawn to scale
Calculate the size of angle \(x\).
You must show all your working. [3]
\(x\) = …………… °
| Scheme | Marks | Comments |
|---|---|---|
| Sight of 60(°) or 90(°) | B1 | Answers may be seen on the diagram. Not as final answer for x or incorrectly labelled on diagram. |
| 180(°) – [60(°) + 90(°)] OR 90(°) – 60(°) | M1 | FT ‘their derived 60(°) or 90(°)’ if B1 awarded |
| 30(°) | A1 | CAO Answer of x = 30(°) with no working gets 3 marks. |