similar triangles
Asked by | 14th Dec, 2008, 09:47: PM
Expert Answer:
In triangle PQS, using pythagorus theoram:
PQ2+QS2=PS2 .. (1)
In triangle PQR,usin pythagorus theoram,
PR2=PQ2+QR2=PQ2+4 QS2 (Using QR=2 QS)
Using value of QS2 from 1 we have:
PR2==PQ2+4 PS2 - 4PQ2 =4PS2-3PQ2
Answered by | 15th Dec, 2008, 01:42: AM
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