Jalisa needs to purchase a cover for her oval-shaped pool. The pool's length and width measurements, as marked by dotted lines, are 30 feet and 13 feet.
If Jalisa wants the pool cover to extend one foot from the pool's edge, as shown in the drawing, what will be the area of the rectangular pool cover?
A.
480 square feet
B.
390 square feet
C.
434 square feet
D.
86 square feet
To calculate the area of the rectangular pool cover, we need to first calculate the dimensions of the cover.
Since Jalisa wants the cover to extend one foot from the pool's edge on all sides, the length of the cover will be 30 + 2(1) + 2(1) = 34 feet and the width will be 13 + 2(1) + 2(1) = 17 feet.
Now, the area of the rectangular pool cover is the product of its length and width:
Area = 34 feet * 17 feet = 578 square feet
Therefore, the correct answer is not listed among the options provided.
one
If we consider the cover to only extend one foot from the pool's edge on all sides (instead of two feet as calculated in the previous response), then the dimensions of the cover would be 32 feet in length (30 feet pool length + 1 foot extension on each side) and 15 feet in width (13 feet pool width + 1 foot extension on each side).
Therefore, the area of the rectangular pool cover would be:
Area = 32 feet * 15 feet = 480 square feet
So, the correct answer is A. 480 square feet.