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Mathematics 14 Online
OpenStudy (anonymous):

can anyone help me please... A small sinkhole has formed close a heavily travelled street. The city plans to fence it in to keep citizens from putting themselves in danger. What is the perimeter of a triangular-shaped fence the city can place around the sinkhole using integer coordinates (no decimals) on the grid? You must show all work to receive credit.

OpenStudy (anonymous):

OpenStudy (anonymous):

@redneckoutlaw

OpenStudy (anonymous):

@coolguy13

OpenStudy (anonymous):

@abb0t

OpenStudy (anonymous):

@sumanta

OpenStudy (cwrw238):

no

OpenStudy (cwrw238):

looks like its 2 point along the line y = -4 and they will have to be a distance apart which will allow the other sides of the triangle to be drawn to a point with integer values

OpenStudy (anonymous):

no what?

OpenStudy (anonymous):

okay so how i would i do that?

OpenStudy (cwrw238):

well trial and error really i guess one point on the left could be (-4,-11)

OpenStudy (cwrw238):

a line from (-4.-10) would not pass the hole

OpenStudy (anonymous):

okay im extremely confused and i have no idea what to do... im sorry would you mind explaining to me how to find the perimeter of the shaped fence?

OpenStudy (cwrw238):

have you got a hard copy of the drawing - it would be easy then

OpenStudy (anonymous):

i have a hard copy just dont know how to solve the problem and this is the last question on my quiz

OpenStudy (cwrw238):

well draw the triangle on the hard copy you can then find the perimeter by using the formula for the distance between 2 coordinates

OpenStudy (cwrw238):

if the coordinates are (x1,y1) and (x2,y2) the distance is sqrt [(x2-x1)^2 + (y2-y1)^2]

OpenStudy (anonymous):

and how many times would i have to do that

OpenStudy (cwrw238):

do this for the 3 lines of the triangle then add them

OpenStudy (cwrw238):

draw 2 lines from the horizontal line diagonally across the squares and they will meeat at a point with integer coordinates

OpenStudy (anonymous):

im sorry i understand what youre saying, i some how screwed this up and now im lost to the point where i dont even know what im doing wrong

OpenStudy (cwrw238):

all i can say is take a short break if you can and go back to it later. i thaink the 2 bottom point of your triangle will be (-11,-4) and (-4,0)

OpenStudy (anonymous):

this is timed so im kinda stuck :(

OpenStudy (cwrw238):

sorry i made a mistake with the coordinates in my previous posts. The x coordinate comes first and the y second. Its (-11,-4) not (-4,-1)

OpenStudy (cwrw238):

and (0,-4) not (-4,0)

OpenStudy (anonymous):

oh okay

OpenStudy (cwrw238):

- you need not work out the length between these because you can just count the squares the length = 11

OpenStudy (cwrw238):

i must be tired im making mistakes all the time these are the correct coordinates (-11, -4) meaning x = -11 and y = -4 (0 , -4) meaning x = 0 , y = -4 and distance between is 11

OpenStudy (anonymous):

so how would i do it step by step to show to get credit

OpenStudy (cwrw238):

well summarize what you have done state the coordinates of the 3 points of the triangle and work out the perimeter

OpenStudy (cwrw238):

obviously you will also submit the drawing

OpenStudy (anonymous):

lol but thats the thing.. i dont remember how to do that.. this is 10th grade math and i havent learned this since last year.. and my teacher is on break

OpenStudy (cwrw238):

all you have to do is to write out what i've explained

OpenStudy (anonymous):

@cwrw238 im so lost can u please help me bc im doing the work and it makes no sense

OpenStudy (anonymous):

@camerondoherty

OpenStudy (anonymous):

@AriPotta

OpenStudy (anonymous):

@Nnesha

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