What is the circum radius of a triangle








What is the circum radius of a triangle whose sides are 7, 24 and 25 units respectively?



[ A ]    18 unit
[ B ]    12.5 unit right
[ C ]    12 unit
[ D ]    14 unit
Answer : Option B
Explanation :
7, 24, 25 is a Pythagorean triplet. Therefore, the given triangle is a right angled triangle.In a right-angled triangle, the median to the hypotenuse is half the hypotenuse and is also the circum-radius of the triangle.As the hypotenuse is 25, the circum radius is 12.5

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