An isosceles triangle of sides 13cm, 13cm, 10cm is inscribed in a circle. What is the radius of the circle?

Answer 1

r = 169/24

Answer 2

13*13=169
13-1=12*2=24
169/24=ans

Answer 3

r=169/24

Answer 4

a=13, b=13cm,c=10cs=a+b+c/2 =13+13+10/2 = 36/2= 18cm.
Area of triangle∆= √s(s-a)(s-b)(s-c)
=√18(18-13)(18-13)(18-10)
=√18×5×5×8
=√3600
= 60cm^2
* R= a×b×c/4×Area of∆
= 13×13×10/ 4×60
= 7.02cm 【Ans】