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In triangle PQR, PQ = 13, QR = 14, and PR = 15. Let M be the midpoint of line QR. Find PM.

 

This is a hard one

 Dec 13, 2020
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In triangle PQR, PQ = 13, QR = 14, and PR = 15. Let M be the midpoint of line QR. Find PM.

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a = 13        b = 14        c = 15

 

Median     PM = [sqrt(2a2 + 2c2 - b2)] / 2  ==>  PM = 12.166

 

It wasn't that hard. smiley 

 Dec 13, 2020

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