Foundation June 2023 Paper 1 Q18
18. The lengths of the three sides of a triangle are in the ratio 3 : 5 : 7.
(a) What fraction of the perimeter is the longest side of this triangle? [1]
(b)
The perimeter of this triangle is 60 cm.
Find the length of each of the three sides of this triangle. [2]
………… cm, ………… cm, ………… cm
| Scheme | Marks | Comments |
|---|---|---|
| \(\frac{7}{15}\) | B1 | Accept equivalent fractions. |
| Scheme | Marks | Comments |
|---|---|---|
| \(\frac{60}{15} \times 3\) or \(\frac{60}{15} \times 5\) or \(\frac{60}{15} \times 7\) si | M1 | FT ‘their 3 + 5 + 7’ from (a). |
| 12 (cm), 20 (cm), 28 (cm) | A1 | FT. Two correct answers imply M1. May be seen in any order. |
| (3) |