ANGLES 1

If A and B are supplementary angles such that A = 27° and B = x + 55° , find the value of x .

Solution

A + B = 180⁰. [Since supplementary angles add up to 180⁰]

27⁰ + x + 55⁰ = 180⁰.

x + 82⁰ = 180⁰.

x = 180⁰ - 82⁰

x = 98⁰  answer.

TRY THIS.............................. 

If A and B are supplementary angles such that A = 53° and B = x + 42° , find the value of x .