In a right triangle ABC, right angles at B, BC=12CM and AB=5CM. Calculate the radius of the circle inscribed in the triangle(in CM).
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By Pythagoras theorem,
hypotenuse AC = 13
radius of in circle = area of triangle/semi perimeter
=(1/2×5×12)÷(5+12+13)/2
=30÷15
=2
hypotenuse AC = 13
radius of in circle = area of triangle/semi perimeter
=(1/2×5×12)÷(5+12+13)/2
=30÷15
=2
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