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In triangle PQR, we have P = 90 degrees, QR = 20, and tan R = 3 sin R.  What is PR?

 Sep 24, 2020
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In triangle PQR, we have P = 90 degrees, QR = 20, and tan R = 3 sin R.  What is PR?

 

PR = cos(R) * 20 = 1/3 * 20

 

tanR = 3 sinR

 

sinR = tanR * cosR

 Sep 24, 2020

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