Question

Find the perimeter of a triangle with vertices (2,4) (-1,3) and (2, -3). help please!!!

Answer 1

It looks like this assignement. Strange... http://openstudy.com/study#/updates/4f47dae4e4b00aeb3e3f021c

Answer 2

Find length of all sides using distance formula
d=sqrt((x1-x2)^2 + (y1-y2)^2)

Answer 3

thanks !!

Answer 4

(2,4) (-1,3) ---> √10

(-1,3) and (2,-3). ---> √45

(2,4) and (2,-3) ----> 7

perimeter = 7 + √45 +√10 =

7 + √10 + 3√5 ---> That's it --> these are not like terms. You can approximate the value of the radicals. but I don't know the instructions you had regarding that.


Note: √45 = √(3*3*5) = 3√5

Answer 5

thank you!