Question

thermo 1 of quadrilateral for class 9​

Answer 1

Step-by-step explanation:

if the diagonals of a quadrilateral bisect each other at right angles, then it is a rhombus. Opposites sides of a quadrilateral are equal hence ABCD is a parallelogram. , ABCD is rhombus as it is a parallelogram whose diagonals intersect at right angle. Hence Proved

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Answer 2

Step-by-step explanation:

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