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Prove that Diagonal of a parallelogram divides it into two congruent triangle? |
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Answer» Step-by-step explanation: In parallelogram ABCD, Angle A = Angle C .......(since opp. ANGLES of a llgm are equal) .....1 Similarly , Angle B = Angle D Construct a diagnal BD Now , angle ABD = angle BDC ...(diagnols bisect the angles of a llgm).....2 Side AD = side BC....(opp. sides of llgm are equal)..3 From 1, 2, 3 By ASA CONGRUENCY rule triangle ABD = triangle BDC . HENCE PROVED |
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