posted by mathdork .
I have a Geometry worksheet I need to get done for tomorrow. It's a really easy thing, I guess...but I'm a bit stuck.
The measure of an angle is six more than twice the measure of its supplement. Find the measure of the angle.
It doesn't have a diagram or anything...what I did was:
m<A = 6(2m<B)
I didn't know how to go on from there so the I did this:
6(2m<B) = 180
12m<B = 180
m<B = 15
But 15 wasn't one of the answers. Can someone tell me how to solve this?
let the angle be xº
then its supplement is 180-x º
now translate "an angle is six more than twice the measure of its supplement" into Math
x = 2(180-x) + 6
x = 360 - 2x + 6
3x = 366
x = 122