Question

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

Answer 1

Answer:

Supplement = 180 - angle measure.  Supplementary angles add to 180 degrees.

So of the measure of the angle is x, the measure of its supplement is 2x.

x + 2x = 180

 

3x = 180

 

x = 60

 

Angle = 60, supplement = 120

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Answer 2

Answer:

Step-by-step explanation:

Let the angle be = x the supplement = 180o – x

According to the question,

x = 2(180o – x)

3x = 360o

x = 120o

Hence the angle is 120o