4MA0 Foundation June 2012 Paper 2 Q10
10 \(AC\), \(BD\) and \(EDC\) are straight lines.

Diagram NOT accurately drawn
(a)
(i) Find the value of \(x\).
(ii) Give a reason for your answer.
(2)(b) Find the value of \(y\). (1)
(c) Find the value of \(z\). (2)
| Scheme | Marks |
|---|---|
| (i) Answer: 62 | B1 |
| (ii) Answer: (Vertically) opposite angles (are equal) | B1 |
| (2) |
Notes
B1: ind Accept abbreviations if meaning is clear.
| Scheme | Marks |
|---|---|
| 44 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 360 – “74” | M1 |
| 286 | A1 |
| (2) | |
| (Total 5 marks) |
Notes
M1: “74” from 180 – (62 + 44)