Question

an equilateral triangle and an isosceles triangle share a common side what is the measure of abc 63 help please

Answer 1

The measure of angle ABC is 114°

An equilateral triangle is a type of triangle in which three sides are equal and the three corresponding angles are equal.

An isosceles triangle is a type of triangle in which two sides are equal and their corresponding are equal.

Each angle in an equilateral triangle is 60°

angle ABD = 180 - (63 + 63)

= 180 - 126

= 54°

angle ABC = ABD + BCD

= 54 + 60

= 114°

Therefore, the measure of angle ABC is 114°