Question

Find the measure of an angle that is double its supplement.​

Answer 1

≡QUESTION≡

Find the measure of an angle that is double its supplement.​

                                                           

║⊕ANSWER⊕║

Let the 2 angles be x and y where x = 2y

$x + y = 180$

(∵ Two supplement angles takes place by 180 degree).

$2y + y = 180$

$3y = 180$

y = 60°

x = 120°