la) It a, b, c are the sides of a right triangle where is the hypotenuse, prove that
the radius r of the circle which touches the sides of the triangle is given by
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If a,b and c are the sides of a right angled triangle where c is the hypotenuse ,then prove that the radius r or the circle which touches the sides of the triangle is given by r = a+b-c/ 2
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