Answer: X is equal to 55.
Step-by-step explanation:
You can determine that the triangle is an isosceles triangle because of its side lengths.
Therefore you know that value of the angle it's not asking for is also x. Since a triangle's angles always measures 180. You can say that 180 = 70 + 2x.
You can now solve for x.
180 = 70 + 2x
-70 -70
110 = 2x
----------------
2
55 = x
