Answer:
sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would
The total area of pool and border = 361 square feet.
Length of square pool = x
Length of square pool plus border = (x + 1 +1 ) = x + 2
There is 1 foot length on each side on the x length.
The other length of the square pool and border = (x + 2)
Area = (x+2)(x+2)
(x + 2)(x +2) = 361. Let A = x +2
A*A = 361
A² = 361 Take square root of both sides
A = √361
A = 19
A = x + 2 = 19
x = 19 - 2
x = 17
Area of square pool = x*x = 17*17 = 289
Area of the pool = 289 square feet.
Answer is x=13.
basically you put them together and make them =180
Answer:
13. It is a paralellogram, because its opposite sides are equal & parallel
14. It is a paralellogram , because it's two diagonals bisect each other .
15. Is a paralellogram, cause its opposite angles are equal
Step-by-step explanation:
As a mixed fraction it is: 
As a regular fraction it is:
