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Question

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anonymous · Answer

|dw:1441573642078:dw|

anonymous · Answer

@freckles

iwillrektyou · Answer

n this case, you need the distance formula.

iwillrektyou · Answer

Those are ordered pairs, right? That show where each point is located?

anonymous · Answer

ya

iwillrektyou · Answer

Do you know the distance formula?

anonymous · Answer

sqrt of x2-x1 ^2+ y2-y2^2

pronounced y-1, not y ^2

iwillrektyou · Answer

Yes. So in order to find the area, you have to find the distance between the length and the width seperately. First, do (-5, 3), and (7, -6).

iwillrektyou · Answer

Just substitute and solve. Let me know if you need help.

anonymous · Answer

64+169

anonymous · Answer

want me to continue or something???

iwillrektyou · Answer

Yes. I will check your answers as you go, if you would like.

anonymous · Answer

233
now what???

iwillrektyou · Answer

You have to do the same thing with the points (-2, 7) and (-5, 3)

anonymous · Answer

81+64
145

iwillrektyou · Answer

In order to find the width. Then, you just multiply the 2. I will be checking your work,

anonymous · Answer

what do i do in order to find the width??

iwillrektyou · Answer

To find the width, use the distance formula for these 2 points: (-2, 7) and (-5, 3)

anonymous · Answer

yah wchich is 145

iwillrektyou · Answer

Yes. To find the area, just multiply the length and width together.

anonymous · Answer

um that's 33785
AAAANNNNDDD thats not an answer choice you are wrong

iwillrektyou · Answer

I am checking your work, and a step was done wrong.

iwillrektyou · Answer

For the width, it is 5.

iwillrektyou · Answer

And I am double checking my work for the length,

anonymous · Answer

how do you get 5??????

iwillrektyou · Answer

Ok so, 
Sqrt (-5 + 2)^2 + (3 - 7)^2 -->
Sqrt (-3)^2 + (-4)^2 -->
Sqrt (9 + 16) -->
5

anonymous · Answer

okay okaywhats the lenght

iwillrektyou · Answer

15

iwillrektyou · Answer

But do you understand the concept?

freckles · Answer

"Yes. So in order to find the area, you have to find the distance between the length and the width seperately. First, do (-5, 3), and (7, -6).
"
$$\text{ distance between these two points is } \ \sqrt{(-5-7)^2+(3-(-6))^2}  \ =\sqrt{(-5-7)^2+(3+6)^2} \ =\sqrt{(-12)^2+(9)^2} .. \text{ so on ... }$$

anonymous · Answer

yeah so 75

iwillrektyou · Answer

Yes. 75 is correct.

anonymous · Answer

can you help with one more?

iwillrektyou · Answer

I will try, but I am not very good at geometry, as I just started learning it. But shoot.

anonymous · Answer

|dw:1441574726192:dw|

find the perimeter