Intermediate November 2020 Unit 1 Q7
7. In the diagrams below, ABCD is a square.
Triangles ABE and KLM are congruent.
Diagrams not drawn to scale
Calculate the area of the square ABCD. [3]
| Scheme | Marks | Comments |
|---|---|---|
| AB = 13 (cm) | B1 | For any indication that side of square = 13 (cm). May be seen on the diagram. No FT (but note SC1). |
| (Area =) 13 × 13 | M1 | C.A.O. Unsupported 169 (cm2) gains all 3 marks. |
| = 169 (cm2) | A1 | If no marks gained award SC1 for a final answer of 144 (cm2) |
Corrected by Westie's Workshop
- The board's mark scheme printed “a final answer of144 (cm²)”. Changed to “a final answer of 144 (cm²)” because a space was missing between “of” and the number.
Original: see the board's mark scheme PDF (link above).