Question

Please help me find x

Answer 1

36°

Explanation:

ABC is an isosceles triangle, so base angles are congruent and measure 72° each.

The sum of interior angles is equal to 180°.

72° + 72° + x = 180°

• Add like terms.

144° + x = 180°

• Subtract 144 from both sides.

x = 36°