Homework Help: Calculus

Posted by -Untamed- on Monday, October 24, 2011 at 11:33pm.

In triangle PQR, angle P is 20 degres, angle R is 150 degrees, and QR is 6, the length of PQ is...?

Calculus - Reiny, Monday, October 24, 2011 at 11:49pm
simple application of the sine law

PQ/sin150 = 6/sin20
PQ = 6sin150/sin20
= ....

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