CBSE Class 10 Answered
ques
Asked by nishac | 28 Feb, 2010, 10:12: AM
Expert Answer
Join A and Q, the midpoint of BC.
In 
ACQ,
AQ2 = AC2 + CQ2 ... Pythagorus's theorem
CQ = BC/2 .... CQ = QB given
AQ2 = AC2 + (BC/2)2
AQ2 = AC2 + BC2/4
4AQ2 = 4AC2 + BC2 ...... multiply both sides by 4
Similary in BCP, we can show that,
4BP2 = 4BC2 + AC2
regards,
Team,
TopperLearning.
Answered by | 28 Feb, 2010, 11:23: AM
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