We know that the sum of the interior angles of a triangle equals 180, then,in this case we have the following equation:

then, solving for b, we get:

now that we have that b = 41, we can find the measure of each angle:
Step-by-step explanation:
180°+63°
=243°
holp it help
7x + 5 = 8x
=》 7x - 8x = - 5
=》 x = - 5 The final Answer!