Question

I need help finding the area of the image. PLEASE
I know how to find the area of something but I keep coming up with the wrong answer.
The coordinate plane shows the floor plan for a swimming pool. What is the area of the pool’s border?

Answer 1

Do you have any answer choices or any numbers to calculate??

Answer 2

@Pianolover03 can u help me please?

Answer 3

Let me try =)

Answer 4

So do you know what to do first or is that the part you are stuck on??

Answer 5

I need to L(W)

Answer 6

Then i would need to subtract the area of the pool yes?

Answer 7

Okay, So do you know the numbers for the equation to work it out?

Answer 8

no Its 15 meters long

Answer 9

I can tell just by looking at it it is not my 1st 3 answers

Answer 10

So what are your answer choices?

Answer 11

my choices are
50 square meters
65 square meters
80 square meters
100 square meters
125 square meters

Answer 12

Thank you, It will just be a sec.

Answer 13

Notice that all the triangles in this diagram are of the 3-4-5 proportions. You can, for example, find the length of the border by noticing that it hits at 9 and 12 so it must be 15 meters long. Use the same method to find the width. Use the same method to find the length and width of the pool. LW of border - lw of pool = answer.

Answer 14

how did you get 15 from 9 and 12

Answer 15

@Pianolover03 I figuared it out
The area of the pool & border is
A = Area
L= Length = 15
W + widith = 10
A = 150
The pool area is
L = 10
w= 5
A= 50
So the area of the perimeter = 100 square meters