Triangle abc is isosceles. what is the length of segment bc?

ANSWER



EXPLANATION

The given triangle has side

and



We were given that the triangle is an isosceles triangle.

This means that these two sides are equal.

We therefore form the equation below and solve for the value of x.


We group like terms to get,



This implies that,





We substitute this value into the expression for side BC to get ,







The correct answer is C.