CBSE Class 9 Answered
ABCD is a cyclic quadrilateral with AD parallel to BC, prove that AB=CD.
Asked by saima zainab | 03 Mar, 2011, 06:25: PM
Expert Answer
Dear Student,
Following is the solution to your question
At the inage provide ABCD is a cyclic quadrilateral with AD parallel to BC ABCD is a trapezium as well and
angle A + angle B = 1800
Also angle A + angle C = 1800
because they are opposite angles of a cyclic quadrilateral
which means angle B = angle C,
which means AB = CD, because if adjacent angle (Angles formed on parallel side)of a trapezium are equal then non parallel sides are equal
Regards
Team Topperlearning
Team Topperlearning
Answered by | 09 Mar, 2011, 11:04: AM
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