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What is the radius of the circle inscribed in triangle ABC if AB = 10, AC = 17, BC = 25? Express your answer as a decimal to the nearest tenth.

 Jul 10, 2021
 #1
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1/   Semiperimeter       s = 1/2(a + b + c)

 

2/   Area      A = sqrt[s (s - a)(s - b)(s - c)]

 

3/   Inradius     r = A / s  smiley

 Jul 10, 2021

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