What is the radius of the in-circle of the triangle whose sides measure 5 12 and 13 units?

What is the radius of the in-circle of the triangle whose sides measure 5 12 and 13 units?

What is the radius of the in-circle of the triangle whose sides measure 5 12 and 13 units? ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

2

12

6.5

6

0 1

Best Answer Explained in Below-:

Sides are 5,12 and 13, so It is a right triangle as 132 = 122 + 52 Therefore, area of the triangle = 12×12×5 = 30 We have to find in - radius area of triangle = 5×r; perimeter, S = 13 + 12 + 52 = 302 = 15; Thus, 30 = 15×r r = 2

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