RRB Paramedical Staff Nurse Model Paper 8

Question : 45 of 100

Marks: +1, -0

The length of the radius of the circumcircle of a triangle having sides 9 cm, 12 cm and 15 cm is:

Solution:

Side of the triangle = 9, 12 and 15

(15)^{2}=(9)^{2}+(12)^{2}

225=225

So the triangle = right angle
So the radius of circumcircle = hypotenuse/2

=15/2=

7.5 {cm}

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