Intermediate November 2022 Unit 1 Q13
13. A rectangle and a square are shown below.
Diagrams not drawn to scale
The total area of the two shapes is 184 cm2.
Find the perimeter of the square. [5]
| Scheme | Marks | Comments |
|---|---|---|
| (Area of square = ) 184 – [15 × 9] = | M2 | Award M1 for sight of 15 × 9 or 135 (cm2). |
| 49 (cm2) | A1 | |
| (Length of side of square = ) 7 (cm) | A1 | FT from M2 only, √’their 49’. May be embedded or written on diagram. |
| (Perimeter of square = 4 × √49 =) 28 (cm) | B1 | FT ’their derived 7’. May be written on diagram. |