SOLUTION: Find the measure of an angle if its measure is four times the measure of its complement?

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Question 152350: Find the measure of an angle if its measure is four times the measure of its complement?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
We know complement angles form 90+degrees
Let's make 2 angles as angleA & it's complement as angleB
So, %28angleA%29%2B%28angleB%29=90 -----------> working eqn
but, angleA=4%2AangleB,= A=4B, then
4B%2BB=90 -----------> cross%285%29B%2Fcross%285%29=cross%2890%2918%2Fcross%285%29
B=18deg
And, A=4%2A18=72deg
In doubt? go back working eqn,
72%2B18=90
90=90
Thank you,
Jojo