In triangle PQR, PQ=6 cm,PR=8 cm and QR=12 cm. Calculate the area of the triangl

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In triangle PQR, PQ=6 cm,PR=8 cm and QR=12 cm. Calculate the area of the triangle PQR.

A. 23.33 cm^2
B. 17.5 cm^2
C. 21.33 cm^2
D. 28.67 cm^2

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