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The diagram shows parallelogram ABCD. What is the measure of angle A if angle D measures 117°?

A 63°
Explaination
In a parallelogram, opposite angles are equal, thus: \u2220 A = \u2220 C \u2220 B = \u2220 D Also, adjacent angles are supplementary, thus: \u2220 B + \u2220 C = 180 \u2220 A + \u2220 D = 180 Since it is given that \u2220 D = 117: \u2220 A = 180 - 117 \u2220 A = 63º
B 180°
C 117°
D 297°