Higher November 2022 Paper 3 Q17
17 A, B and C are points on a circle, centre O.
BD is a tangent to the circle.
OCD is a straight line.
Work out the size of angle \(x\). [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(BOD = 2 \times 32\) or 64 | M1 | oe eg \(BOC = 64\) may be seen on diagram |
| \(OBD = 90\) | M1 | may be seen on diagram or implied by further working or answer |
| 26 | A1 |
Additional guidance
90 can be implied by a square angle sign
\(180 - 154\) implies M1M1