Question

What is the measure of x?

Answer 1

In ΔABC,

angle BAC = 180 - 123 = 57°.......(Linear pair)

Now, We Know,

Sum of all angles in a triangle = 180°

therefore,

angle BAC + angle BCA + angle ABC = 180°

58 + 57 + x = 180°

115° + x = 180°

x = 180° - 115°

x = 65°...ans

Hope it helps you!!