Question

Find the value of BC

Answer 1

BC = 20 units.

Explanation:

This triangle has 3 equal sides.

so: -y + 23 = 6y + 2

23 - 2 = 6y + y

21 = 7y

y = 3.

So each side is 6(3) + 2 = 20 units long.

Answer 2

Answer: BC=3

Step-by-step explanation: Set the two side lengths equal to each other and solve.