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Two adjacent angles in a parallelogram are in the ratio 1: 2, and then the
angles are —————
A. 40, 140
B. 60, 120
C. 80, 100
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12 ABCD is a parallelogram in which in which Angle ADC=75 and the side AB is
produced to E find x+y
13 EDC is an equilateral triangle and ABCD is a suare then,
Prove that i) AE=BE ii)Find measure of angle DAE
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14 If the angles of a parallelogram are (2x-25) , (2x-25) , (x-5) and (x-5) find the
measure of the angles.
