SOLUTION: In the diagram of isosceles trapezoid ABCD, AB = CD. The measure of angle B is 40 degrees more than the measure of angle A. Find m angle A and m angle B. m angle A= and m ang

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Question 404733: In the diagram of isosceles trapezoid ABCD, AB = CD. The measure of angle B is 40 degrees more than the measure of angle A. Find m angle A and m angle B.
m angle A=
and m angle B =

Answer by MathLover1(20849) About Me  (Show Source):
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A trapezoid has supplementary adjacent angles. So this means that A%2BB=180.
given:
the measure of angle B is 40 degrees more than the measure of angle A, which means that B=+A+%2B+40

A%2BB=180
A%2BA+%2B+40=180
2A+=180+-40
2A+=140
A+=140%2F2
A+=70.....m angle A...now find B
B=A+%2B+40
B=+70%2B+40
B=+110..........m angle B..