Question

The perimeter of the triangle below is 72 units. Find the length of side PQ.

Write your answer without variables.

Answer 1

Answer: 27

Explanation:

5y + (4y - 1) + (y + 3) = 72

5y + 4y -1 + y + 3 = 72

10y + 2 = 72

10y = 70

y = 7

PQ = 4y-1

= 4(7) - 1

= 28 - 1

= 27 units