Question: In a parallelogram, one angle measures 40°. What is the measure of the adjacent angle?
A) 40°
B) 80°
C) 140°
D) 160°
Solution:
In a parallelogram, adjacent angles are supplementary, meaning their sum is 180°. Therefore, if one angle measures 40°, the adjacent angle is:
180° – 40° = 140°
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