prove a cyclic parallelogram is rectangle
Asked by | 7th Jun, 2008, 07:27: PM
Combine the two properties -
1. Opposite angles of a parallelogram are equal.
2. Opposite angles of a cyclic quadrilateral are supplementry.
It means each of opposite angles of a cyclic parallelogram is a right angle (180 / 2 = 90 degree).
So, all angles are right angles in cyclic parallelogram which makes it a rectangle.
Answered by | 25th Jul, 2008, 05:00: PM
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