SOLUTION: find the measure of the four angles of parallelogram ABCD if the measure of ∠A is ten less than four times the measure of ∠B

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Question 703825: find the measure of the four angles of parallelogram ABCD if the measure of ∠A is ten less than four times the measure of ∠B
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
A = 4B - 10°
A + B = 180°

Solve those by substitution and get B = 142° and A=38°.



∠A = ∠C = 38°,  ∠B = ∠D = 142°

Edwin