Question

A and B are complementary angles. If m_A= (2x + 10)° and m

ZB = (3x + 15)°, then find the measure of ZB

Answer 1

Explanation:

<A + < B = 90° { being complementary angles)

2x + 10° + 3x + 15° = 90°

5x = 90° - 15° - 10°

5x = 65°

x = 13°

Now

<B = 3x + 15° = 3 *13° + 15° = 54°

Hope it will help :)