Question

Find the angle which two by three of its supplement

Answer 1

Answer:72°

Step-by-step explanation:

let the angle be x, ∴Its supplement = 2/3x

∴By Condition

x+2x/3=180°

⇒5x/3=180

⇒5x=540

⇒x=540/5

⇒x=108

∴the angle is 180°-108°=72°