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10 December, 09:40

In ΔPQR, sin P = 3/4, sin R = 2/5, and p=40. Find the exact value of r.

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  1. 10 December, 12:54
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    Hello,

    sin (P) / p=sin (R) / r

    ==>r=sin (P) / (p * sin (R))

    r = (3/4) / (40*2/5)

    r=3/4 * 5 / (40*2) = (3/4) / 16=3/64
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