Question

What is the length of BC ?

Answer 1

BC = 22

Explanation:

∠ACB = ∠ABC , hence ΔABC is isosceles with

AC = AB ← substitute in values

2x - 24 = x - 2 ( subtract x from both sides )

x - 24 = - 2 ( add 24 to both sides )

x = 22

Hence BC = x = 22

Answer 2

x = 22

Explanation:

Sides AC and AB are equal, because this is an isosceles triangle.

Therefore, 2x - 24 = x - 2.

Subtracting x from both sides yields x - 24 = -2, and then adding 24 to both sides yields x = 22.