Question

Two angles are supplementary and one of them is three times as big as the other. What is the size of the smaller of the two angles?

Answer 1

Answer:

supplementary means 180 degree

let one be x

other will be 3x

so add the 2 angles

x+3x=180

4x=180

x=45

so smaller angle is 45 degree

Answer 2

Answer:

45° and 135°

Step-by-step explanation:

Let the angles be x and y

Given

x +y= 180

also

x=3y

hence 4y=180

or y =45°

and x=135°