PM is a median prove that A(triangle PQM)=A (triangle PRM)
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Answer:
BC : QR = 3:4
QR = 15
Step-by-step explanation:
ΔABC ≅ ΔPQR
=> AB/PQ = BC/QR = √Area of ΔABC /√Area of ΔPQR
=> BC/QR = √(Area of ΔABC/Area of ΔPQR)
=> BC/QR = √(9/16)
=> BC/QR = 3/4
BC : QR = 3:4
in ΔPQR RS is bisector of ∠PRQ
=> PS/QS = PR/QR
=> 8/6 = 20/QR
=> QR = 15
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