
Jackie N.
asked 01/17/13finding the measure of angles in degrees
if b is 180 degree and c is 140 degree then what is a?
1 Expert Answer

Andrew E. answered 01/20/13
Dedicated Tutor--Proficient in Math, English and SAT Prep
It sounds like on the opposite sides of a straight line are three angles, one lone angle (180 degrees) on one side and two angles (supplementary angles that together equal 180 degrees) on the other. So if one of the angles is 140 degrees then you can find the other angle by subtracting from 180:
180-140=40
angle A is 40 degrees
Jackie N.
Exactly what I was looking for! Thanks a bunch.
01/22/13
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Kevin S.
Jackie
What are the angles part of?
If a triangle, then all 3 angles of a triangle must equal 180 degrees.
re: angle b having measure 180, that makes it essentially a straight line.
01/17/13