Question

Find an angle who supplement is three times it’s complement. Can you also give it in an equation form?

Answer 1

45°

Explanation:

let the angle be x, then

The supplement of x is 180 - x and the complement of x is 90 - x, thus

180 - x = 3(90 - x) ← equation of model, that is

180 - x = 270 - 3x ( add 3x to both sides )

2x + 180 = 270 ( subtract 180 from both sides )

2x = 90 ( divide both sides by 2 )

x = 45

Thus required angle is 45°