Question

HELPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!?????????????????????????????????????????????????????

if a circle is inscribed in a triangle with sides of length x y and z then the radius of the circle is given by the formula below

r= (everything is in the square root) ((s-x)(s-y)(s-z))/s, where s= (x+y+z)/2,

find the radius that has sides of 2, 4, and 4??

Answer 1

is the answer sq root 3/5??

Answer 2

what does s equal?

Answer 3

the 3 and 5 look good, but im not sure what the sqrt is spose to wrap around

Answer 4

\[\sqrt{ ((s-x)(s-y)(s-z))}~/s\]

or

\[\sqrt{ ((s-x)(s-y)(s-z))~/s}~~\]