Question 716555
the supplement of an angle is 10 less than three times its complement. what is the measure of the angle?


Let the angle's measure be A


Then its supplement is 180 - A, and its complement is: 90 - A


Therefore, 180 - A = 3(90 - A) - 10


180 - A = 270 - 3A - 10


- A + 3A = 270 - 10  - 180


2A = 80


A, or measure of angle = {{{80/2}}}, or {{{highlight_green(40^o)}}}


You can do the check


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