Question

What is BC? Enter your answer in the box _units

Answer 1

Answer:

BC = 25

Step-by-step explanation:

It's an isosceles triangle (congruent angles ∠C ≅ ∠B).

Therefore AC = AB.

We have the equation:

$4x+1=2x+23$        subtract 1 from both sides

$4x=2x+22$       subtract 2x from both sides

$2x=22$          divide both sides by 2

$x=11$

Substitute the value of x to the expression BC = 3x - 8:

$BC = 3(11) - 8=33-8=25$