Question

if the measure of two angles of an isosceles triangle are 54 degrees and 63 degrees what is the measure of the third angle?

Answer 1

The total internal angles of a triangle always equal 180 degrees. Therefore, the third angle of this triangle must be 180 - 54 - 63 = 63. Since this value is the same as one of the stated sides, the triangle is indeed isosceles.

Answer 2

Thank you so much