Find the perimeter of a quadrilateral with vertices at C (−1, 2), D (−2, −1), E (2, −2), and F (1, 1). Round your answer to the nearest hundredth when necessary.

10.92 units
12.68 units
13.43 units
18.27 units

Question

Find the perimeter of a quadrilateral with vertices at C (−1, 2), D (−2, −1), E (2, −2), and F (1, 1). Round your answer to the nearest hundredth when necessary.

 10.92 units
 12.68 units
 13.43 units
 18.27 units

hannahgrace4464 · Answer

here it is, @Will.H :)

will.h · Answer

in order to fine the perimeter we have to know the length of the sides, do you know how to find the lengths?

hannahgrace4464 · Answer

I think using the distance formula, but I'm not completley sure which numbers to plug in

hannahgrace4464 · Answer

any ideas? I really need an answer

will.h · Answer

Great job using Distance formula
$$D= \sqrt{(y2-y1)^2 + (x2-x1)^2}$$

Now here's the quadrennial  
Look at the picture below i made, i assume now you can find which sides you should work on? 
I will be right here with you to the end, Work on finding the lengths of the sides 1st

hannahgrace4464 · Answer

okay, I think it's around 10 or 11 so maybe A?

will.h · Answer

in the picture you will find the length of the sides listed on the left and by adding all the lengths together we will get the perimeter therefore
3.16+ 4.12 + 3.16 +2.24 = 12.68
Hope that helps :)