Foundation November 2017 Paper 1 Q2
2.
(a) 
Points \(A\) and \(B\) are on the circumference of the circle with centre \(O\).

(i)
Circle the name of the straight line \(AB\). [1]
radius chord circumference tangent arc
(ii)
\(AC\) is a diameter of the circle.
Draw this diameter on the circle above.
Label the point \(C\). [2]
(b) 
Calculate the size of each of the angles \(w\), \(x\) and \(y\). [4]

Diagram not drawn to scale
| Scheme | Marks | Comments |
|---|---|---|
| (i) Chord | B1 | |
| (ii) Correct diameter drawn from \(A\). | B2 | Mark intention of a straight line Accept \(C\) not labelled or mislabelled if clear. B1 for any diameter not drawn from \(A\) |
| Scheme | Marks | Comments |
|---|---|---|
| ( \(w\) = ) 265 (°) | B1 | |
| ( \(x\) = ) 125 (°) | B1 | |
| 180 – (95 + 55) or 125 – 95 | M1 | seen or implied; FT ‘their 125’ |
| ( \(y\) = ) 30 (°) | A1 | |
| (7) |