A triangle has sides with lengths of 3, 8, and 4. What is the radius of the triangles inscribed circle?

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Answer 1 · 2016-03-05T03:33:59

Before we compute for the inscribed circle, we have to know if the triangle exists.

The given is a triangle with sides 3, 8, 4

For any triangle with sides a, b, c, the following conditions should be true

(1) $" "a+b>c$
(2) $" "a+c>b$
(3) $" "b+c>a$

Let $a=3$ and $b=8$ and $c=4$

We can see that the 2nd condition is False !

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