Intermediate November 2018 Unit 2 Q5
5. In this question, you will be assessed on the quality of your organisation, communication and accuracy in writing.
ABC is an isosceles triangle and ABP is a straight line.
\(AC = BC\) and \(A\widehat{C}B = 76^\circ\).
Diagram not drawn to scale
Calculate the size of \(C\widehat{B}P\).
You must show all your working. [3 + 2 OCW]
| Scheme | Marks | Comments |
|---|---|---|
| (ABC or BAC =) \(\dfrac{180 - 76}{2}\) | M1 | Angles may be shown on the diagram. |
| = 52(°) | A1 | |
| (CBP = 180 – 52 =) or (CBP = 76 + 52 =) 128(°) | B1 | F.T. 'their derived, stated or shown 52' BUT not 76. |
| Organisation and Communication. | OC1 | For OC1, candidates will be expected to:
|
| Accuracy of writing. | W1 | For W1, candidates will be expected to:
|