SOLUTION: The complement of angle A is 20 degrees less than half the supplement of triangle A. Find the measure of angle A

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Question 209366This question is from textbook
: The complement of angle A is 20 degrees less than half the supplement of triangle A. Find the measure of angle A This question is from textbook

Answer by stanbon(75887) About Me  (Show Source):
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The complement of angle A is 20 degrees less than half the supplement of triangle A. Find the measure of angle A
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Complement of A is 90-A
Supplement of A is 180-A
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Equation:
90-A = (1/2)(180-A)-20
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90-A = 90-(A/2) - 20
(A/2) +70 = 90
A/2 = 20
A = 40 degrees
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Cheers,
Stan H.
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