Higher November 2022 Paper 6 Q8
8 Triangles ABC and DEF are mathematically similar.
Angle ABC = Angle DEF.
Not to scale
Calculate the perimeter of triangle ABC. [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 57.5 | 4 | M2 for \(\frac{7 \times 25}{10}\) oe soi by 17.5 or M1 for 25 ÷ 10 or 10 ÷ 25 or 7 ÷ 10 or 10 ÷ 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 |