ABC - APOR, AC AABC) = 81 cm². If AB = 6, PQ = 12 cm,
then find ACA POR).
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Answer:
Ar(∆ABC)/ar∆PQR =9/4
AB^2/PQ^2=9/4
AB^2/64=9/4
AB^2=64×9)/4
=16×9
=144
AB=√144=12cm
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