Foundation November 2022 Paper 3 Q26
26 Triangles ABC and DEF are mathematically similar.
Angle ABC = Angle DEF.
Not to scale
Calculate the perimeter of triangle ABC.
.................... cm [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 57.5 | 4 | M2 for \(\dfrac{25}{10} \times 7\) oe soi by 17.5 or M1 for \(25 \div 10\) or \(10 \div 25\) or \(7 \div 10\) or \(10 \div 7\) AND M1 for 15 + 25 + their 17.5 | Evidence may be seen on diagram Implied by 2.5 or 0.4 or 0.7 or 1.4... their 17.5 from their valid attempt using scale factors to find AB |