A right angled triangle has an inradius of 6 cm and a circumradius of 25 cm.Find its perimeter.Explain kar dena thoda!

1) 102
2) 112
3) 120
4) 36

• given inradius is 6...so if a,b are two sides and c is the third side which is hypotenuse ,then 1/2(a+b-c)=6; also given circumradius=25. In a right triangle circumradius=1/2*hypotenuse.
  So hypotenuse c=50.. From this we can get a+b=62 and a+b+c=112 ANS
• 11 years agoHelpfull: Yes(3) No(2)
• In aright angled triangle , if r is in radius and R is circum radius, there is a relation
  Perimeter of the triangle = 2 (r+2R)
  In this case , the perimeter is 112
• 9 years agoHelpfull: Yes(1) No(0)