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.

A. 10.92 units
B. 12.68 units
C. 13.43 units
D. 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.

A. 10.92 units
B. 12.68 units
C. 13.43 units
D. 18.27 units

anonymous · Answer

@irockout @Tom_Boy_Rebel

anonymous · Answer

@magbak

magbak · Answer

use the distance formula y2(-y1)/ (x2-x1)= Distance for all 4 sides then add al of the distances.

anonymous · Answer

I'm still a little confused on what you mean.. @magbak

anonymous · Answer

You have to use the distance formula and plug in the numbers and just solve. @KellyRJr

magbak · Answer

Ok each coordinate is (x,y) so for each side you need to find the measure for the distance found by $$(y _{2}-y_{1})/(x_{2}-x_{1})= Distance$$ then when you do that for all of the distances you need to add them to find the preimiter.

anonymous · Answer

I understand how to do that part, I just don't understand how to set it up with four different sides..

magbak · Answer

You need to graph each coordinate point.

magbak · Answer

you get is now @KellyRJr

magbak · Answer

@KellyRJr

magbak · Answer

@KellyRJr

magbak · Answer

CLick onexactly thank you very much