A triangle has corners at #(7 , 9 )#, #(3 ,7 )#, and #(4 ,8 )#. What is the radius of the triangle's inscribed circle?
1 Answer
Feb 4, 2018
Incenter radius
Explanation:
Given the coordinates of the three vertices of a triangle ABC,
the coordinates of the incenter O are
Given A(7,9), B(3,7), C(4,8)
Using distance formula we can calculate a, b, c.
Semi perimeter
Area of triangle
Incenter radius