Question

The measure of an angle is twice the measure of its supplementry angle .find its measure .

Answer 1

Answer:

Let the angle be = x the supplementary angle be 1 80 – x

According to the question,

x = 2(180 – x)

3x = 360

x = 120

Hence the angle is 120

Step-by-step explanation:

Answer 2

Answer:

120 degree

Step-by-step explanation:

Let the angle be x

It's supplementary angle=(180-x)

A/Q

x=2(180-x)

x=360-2x

x+2x=360

3x=360

x=120