Question

A triangle has corners at (3,2), (6,7), and (5,8). What is the radius of the triangle's inscribed circle?

Answer 1

it will be

(x,y)

by identity ,

the circumcenter of a traingle=

x=X1+ X2+X3 / 3

=3+6+5/3

=14/3

=4.6

y= y1+y2+y3 /3

= 2+7+8/3

=17/3 = 5.6

d(X,y) = 5.6-4.6

= 1 unit.

hope it helped ......

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