4MA0 Foundation June 2016 Paper 2R Q10
10
Diagram NOT accurately drawn
ABC is an equilateral triangle.
ABD and ACE are straight lines.
Angle EBD = 90°
Work out the size of angle \(x\).
(3)
| Scheme | Marks |
|---|---|
| Angle ACB or ABC or BAC = 60° | B1 |
| 180° − 90° − 60° or 180° − 120° − 30° | M1 |
| 30 | A1 |
| (3) |
Notes
B1: Could be on diagram (also implied by CBE = 30°)
M1: for a complete method