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Question

In ΔPQR,r=9 inches, p=6.6 inches, and Q=6°. Find the area of ΔPQR, to the nearest one decimal of a square inch.


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Solution

Find the area of the triangle.

Given that: In ΔPQR,r=9 inches, p=6.6 inches, and Q=6°.

A=12rpsinQ

Substitute r=9,p=6.6andQ=6:

A=12·9·6.6·sin6A=3.1in2

Hence, the area of the triangle is 3.1in2.


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