4MA0 Higher June 2016 Paper 3R Q19
19
Diagram NOT accurately drawn
\(A\), \(B\) and \(C\) are points on a circle, centre \(O\).
\(PA\) and \(PC\) are tangents to the circle.
Angle \(ABC\) = 100°
Calculate the size of angle \(APC\).
(3)
| Scheme | Marks |
|---|---|
| 100 × 2 360 – "100 × 2" (=160) | M1 |
| 360 – (90 + 90 + "160") | M1 |
| 20 | A1 |
| (3) |
Notes
M1: Complete method to find obtuse angle \(AOC\) – could be seen in correct place on diagram
M1: dep for correct method to find \(APC\)