Question

Enter your answer and show all the steps that you use to solve this problem in the space provided
Drawing not to scale
What s the value of x?

Answer 1

Since the two slant sides have equal length, the triangle is isosceles.

If a triangle is isosceles, the two angles at the base have equal measure.

So, the measures of the angles are 38, x and x. The sum of the angles is 180, so we have

$38+x+x=180 \iff 2x=180-38 \iff x=\dfrac{180-38}{2}=71$