A triangle has corners at #(3 , 4 )#, #(8 ,2 )#, and #(5 ,8 )#. What is the radius of the triangle's inscribed circle?
1 Answer
Mar 2, 2018
Area of the radius of the circumscribed circle is
Explanation:
Steps :
1. Find the lengths of the three sides using distance formula
- Find the area of the triangle using formula
#A_t = sqrt(s (s - a) (s - b) ( s - c))#
- Find the area of circum radius using formula
#R = (abc) / (4A_t)#