Two angles measure (30-a) and (125+2a). If each one is the supplement of the other, then the value of a is :
Answers
Answered by
10
supplementary angles add to 180
hence 30-a+125+2a=180
⇒155+a=180
⇒a=180-155=25
hence 30-a+125+2a=180
⇒155+a=180
⇒a=180-155=25
Similar questions