SOLUTION: two angles are supplementary if the sum of their measures is 180. angles A and B are supplementary. if the measure of angle A is 78 write and solve an addition equation to find the

Algebra ->  Angles -> SOLUTION: two angles are supplementary if the sum of their measures is 180. angles A and B are supplementary. if the measure of angle A is 78 write and solve an addition equation to find the      Log On


   

Question 1200257: two angles are supplementary if the sum of their measures is 180. angles A and B are supplementary. if the measure of angle A is 78 write and solve an addition equation to find the measure of angle B
Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
two angles are supplementary if the sum of their measures is 180. angles A and B are supplementary. if the measure of angle A is 78 write and solve an addition equation to find the measure of angle B
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Hint:
Maybe B = 15 degs?
Does 78 + 15 = 90?

Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.

     A + B = 180 degrees.

    78 + B = 180 degrees.

         B = 180 - 78 degrees.

         B =    102   degrees.

Solved.

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    - Solved problems on supplementary and complementary angles
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