Question

The side lengths of a triangle are in the ratio 2:3:4. The longest side has a length of 24cm. What is the perimeter of the triangle? Give answer in centimetres.

Answer 1

54cm would be the correct answer

Answer 2

Explanation:

In the ration 2:3:4 the largest value is 4

24/4 is 6, so now we know the scale factor is 6

2 x 6 = 12

3 x 6 = 18

Now, we add all the values 24 + 12 +18 = 54

perimeter = 54 cm

Hope this helps!