Find the perimeter of WXYZ. Round to the nearest tenth if necessary.

130
3.7
21.9
21.3
I think it's 21.3 but I'm not sure. It could be 21.9 also.

Question

Find the perimeter of WXYZ. Round to the nearest tenth if necessary.
 	
	130
	3.7
	21.9
	21.3
I think it's 21.3 but I'm not sure. It could be 21.9 also.

bringmetherain · Answer

attachment

bringmetherain · Answer

@skatergirl147

bringmetherain · Answer

@aziaboo45

ltrout · Answer

Use distance forumla. $$\frac{ (y2-y1) }{(x2-x1) }$$
On each line. WX, XY, YZ, ZW. Make sense?

ltrout · Answer

Then you would add those distances together to get the perimeter.

ltrout · Answer

I'll help you on line WX.

y2= 4
y1 = 2
x2 = -1
x1 = 1.

Y2-Y1 = 2
X2-X1 = -2

2/-2 = -1

ltrout · Answer

Now you would do this for the remaining 3 lines and add there values together.

bringmetherain · Answer

It would be 3.7, correct? @ltrout

bringmetherain · Answer

Oops, nevermind. It's 21.9!

ltrout · Answer

Goodjob! That's correct! :)