If ABCD Is a parallelogram, then what is the m
1 answer:
Step-by-step explanation:
the given shape is a parallelogram so, adjacent angles are supplementary.
so,
=》3y - 15° + 2y = 180°
=》5y = 180° + 15°
=》y = 195° ÷ 5
=》y = 39°
now , Angle A = Angle C
( they are opposite angles of a parallelogram )
=》Angle A
=》 2 × y
=》2 × 39°
=》78°
hence, Angle A = 78°
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