Celia is designing a pool for her backyard. It is in the shape of a rectangle, and on her design 1 unit=1 ft. On her graphed design, the corners of the pool are at (28,12) , (18,12) , (18,4) , and (28,4) . What is the area of her pool?
To calculate the area of the pool, we need to find the length and width of the rectangle.
The length of the rectangle is the difference between the x-coordinates of the two corner points on the same side:
Length = 28 - 18 = 10 ft
The width of the rectangle is the difference between the y-coordinates of the two corner points on the same side:
Width = 12 - 4 = 8 ft
Now, we can calculate the area of the rectangle:
Area = Length x Width
Area = 10 ft x 8 ft
Area = 80 sq ft
Therefore, the area of Celia's pool is 80 square feet.