Question

What is the length of side BC of the triangle? Explain how you arrived at your answer.

Answer 1

@28#

Explanation:

Given that `AC=AB`,
`=> 2x+7=4x-7`
`=> 4x-2x=7+7`
`=> 2x=14`
`=> x=7`
Given that `BC=4x=4*7=28`