4MA0 Higher January 2018 Paper 3R Q5
5 Here is a trapezium and a square.
Diagram NOT accurately drawn
The lengths of the parallel sides of the trapezium are 24 cm and 30 cm.
The height of the trapezium is 12 cm.
The area of the square is equal to the area of the trapezium.
Work out the perimeter of the square.
(4)
| Scheme | Marks |
|---|---|
| \(\dfrac{(24 + 30)}{2} \times 12\;(= 324)\) | M1 |
| \(\sqrt{\text{'}324\text{'}}\;(= 18)\) | M1 |
| 4 × '18' | M1 |
| 72 | A1 |
| (4) |
Notes
M1: for a complete method for the area