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a certain parallelogram

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a certain parallelogram

by sanju09 » Sun Feb 20, 2011 11:19 pm
In a certain parallelogram, the degree measure of one interior angle exceeds that of another interior angle by 30. What is the size of the smaller angle?
(A) 30°
(B) 55°
(C) 60°
(D) 70°
(E) 75°

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by manpsingh87 » Sun Feb 20, 2011 11:26 pm
sanju09 wrote:In a certain parallelogram, the degree measure of one interior angle exceeds that of another interior angle by 30. What is the size of the smaller angle?
(A) 30°
(B) 55°
(C) 60°
(D) 70°
(E) 75°
Is it E, direct property based question of a parallelogram, sum of any two adjacent angles of a parallelogram is 180
x+x+30=180
2x=150
x=75.
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