1MA0 Higher June 2013 Paper 2 Q9
9

Diagram NOT accurately drawn
\(ABC\), \(PQR\) and \(AQD\) are straight lines.
\(ABC\) is parallel to \(PQR\).
Angle \(BAQ = 35^\circ\)
Angle \(BQA = 90^\circ\)
Work out the size of the angle marked \(x\).
Give reasons for each stage of your working. (4)
| Answer | Mark | Notes |
|---|---|---|
| 55 | 4 | M1 for a correct method to find a different angle using 35° M1 for setting up a complete process to calculate angle \(x\) A1 cao B1 states one of the following reasons relating to their chosen method: Alternate angles are equal; Corresponding angles are equal; Allied angles / Co-interior angles add up to 180; the exterior angle of a triangle is equal to the sum of the interior opposite angles. |