Question

congruent triangles quiz
what is the value of x?

Explanation:

Step1: Identify congruent sides

Since the two triangles are congruent, the corresponding sides are equal. Side $BC$ with length $x - 4$ corresponds to side $EF$ with length 19. So we set up the equation $x-4=19$.

Step2: Solve the equation for x

Add 4 to both sides of the equation $x - 4=19$. We get $x=19 + 4$.

Answer:

$x = 23$