The ratio of the measures of two supplementary angles is 7:3. Find the measures of the angles.
A. 126° and 54°
B. 72° and 18°
C. 159° and 21°
D. 69° and 21°

Question

The ratio of the measures of two supplementary angles is 7:3. Find the measures of the angles. 
	A.	126° and 54°
	B.	72° and 18°
	C.	159° and 21°
	D.	69° and 21°

sammixboo · Answer

I believe it is A... If you look at this problem it explains it more... http://openstudy.com/study#/updates/504ecf8ee4b05be998159054

anonymous · Answer

supplementary angles add up to 180
so it can't be the second or the last ones

and 126 + 54 = 180
and 159 + 21 = 180
so what you want to do is find 126/ 7 and 54/7 (do the same thing for 159 and 21) and if they end up being the same, then you have your answer

i<3mybaby · Answer

@jadeybells... wait isnt it 126/7 and 54/3?

anonymous · Answer

that's what I meant /).< sorry

i<3mybaby · Answer

it's ok so that one is 18 and 18 and 159/7 =22.7. but 21/3=7 so it has to be a

anonymous · Answer

Yep :) Like Sammi said, as well

sammixboo · Answer

*dances*

i<3mybaby · Answer

thanks