Question

What is the perimeter of a triangle with corners at `(9 ,5 )`, `(6 , 2 )`, and `(5 ,7 )`?

Answer 1

Perimeter of the triangle `=27.05`

Explanation:

Length of sides :
`AB=sqrt(3^2+3^2)=sqrt18=3sqrt2`
`BC=sqrt(5^2+(-1)^2)=sqrt26`
`CA=sqrt(2^2+(-4)^2)=sqrt20=2sqrt5`
Perimeter = `3sqrt2+sqrt26+2sqrt5`
`=27.05`