Question

The perimeter of the pentagon below is 63 units. Find the length of side {B C}. Write your answer without variables.

Answer 1

8units

Explanation:

3x + 12 + (2x+1) + (x+2) + 12 = 63units

3x + 12 + 2x + 1 + x + 2 + 12 = 63units

3x + 2x + x = 63units - 12 - 1 - 2 - 12

6x = 36units

x = 36units ÷ 6

x = 6units

so length of B C,

= x + 2

= 6 + 2

= 8units