Question

Pappy's Pond is located close to an elementary school. The city plans to fence it in to keep small children from accessing the water. What is the perimeter of a triangular-shaped fence the city can place around the pond, using integer coordinates (no decimals) on the grid? You must show all work to receive credit.

Answer 1

And i did this . what do you think ? @Ankh

Answer 2

Now find the perimeter of the triangle you built using the distance formula.
No need to use the formula on the base that is parallel to the x axis since its distance is pretty visible (12 units)

Answer 3

Scratch what I said earlier about different coordinates, I misread what needs to be integer.

Answer 4

Then im lost becuase the distance between AB is sq root of 72, which equals 8.5 & same for BC

Answer 5

because*

Answer 6

@Ankh

Answer 7

http://openstudy.com/study#/updates/53a371cfe4b024ecf3c5be0c

Answer 8

https://answers.yahoo.com/question/index?qid=20120412174159AAxcrl4

Answer 9

We all have different coordinates for the triangle...does that mean my coordinates are wrong ?

Answer 10

nopes

Answer 11

so then i would just add them ? like
8.5 + 8.5 + 12 = 29 ?

Answer 12

wat are ur coordinates

Answer 13

A(10, 0) B(4, 6 ) C(-2, 0)

Answer 14

can u show ur work pls

Answer 15

They asked for integer coordinates, not an integer perimeter.

Answer 16

Work : AB (4-10)^2 + (6-0)^2
(-6)^2 + (6)^2
36 + 36
Sq root 72 = 8.5

BC (-2 -4)^2 + (0-6)^2
(-6)^2 + (-6)^2
36 + 36
sq root of 72 = 8.5

Answer 17

AC is automatically 12

Answer 18

@Ankh what do you mean integer coordinates ?

Answer 19

A(10 , 2) is an integer coordinate
A(10.234 , 2.123) isn't

Answer 20

Ooohh. so what do i have to do ?

Answer 21

What you did since the start was okay, just find the length of each edge and add them together to find the perimeter.

Answer 22

the length of each edge ? so no distance formula ?

Answer 23

@Ankh

Answer 24

use the distance formula

Answer 25

didnt i do that already ?

Answer 26

??

Answer 27

yes actually i din understood wat he meant acc to me u did fine.

Answer 28

To find the length you need to use the distance formula. If you already did and found the lengths of each side, add them up to get the perimeter.

Answer 29

How else would you find the length?

Answer 30

Work : AB (4-10)^2 + (6-0)^2
(-6)^2 + (6)^2
36 + 36
Sq root 72 = 8.5

BC (-2 -4)^2 + (0-6)^2
(-6)^2 + (-6)^2
36 + 36
sq root of 72 = 8.5

8.5 + 8.5+ 12 =29 ?

Answer 31

yes its correct

Answer 32

So thats all ?

Answer 33

yups

Answer 34

Cool! Thanks you guys ! ^.^

Answer 35

yw c: