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What is the radius of the circle inscribed in triangle ABC if AB = 10, AC = 17, BC = 22? Express your answer as a decimal to the nearest tenth.

 Nov 3, 2020
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What is the radius of the circle inscribed in triangle ABC if AB = 10, AC = 17, BC = 22? Express your answer as a decimal to the nearest tenth.

 

1/   Find the triangle area using Heron's formula.

 

2/   Calculate the value of inradius using this formula:   r = A / s       ( 's' --semiperimeter) 

 Nov 4, 2020

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