3. One angle of a parallelogram is 100°. Find the
measure of the remaining three angles.
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Step-by-step explanation:
find the measure of remaining 3 angles. therefore, angle D will also be 80 degree. (opposite angles are equal)(opposite to angle B) hence, angle A = 100 degree, angle B = 80 degree, angle C = 100 degree, and, angle D = 80 degree.
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