Final answer:
To find the number of 1-foot by 1-foot square planter boxes that will fit inside the square garden, use the Pythagorean theorem to find the side length of the garden. Divide the area of the garden by the area of each planter box to determine the number of planter boxes that will fit.
Step-by-step explanation:
To find the number of 1-foot by 1-foot square planter boxes that will fit inside the square garden, we need to determine the area of the garden and divide it by the area of each planter box.
Since the garden is square and the diagonal length is given, we can use the Pythagorean theorem to find the side length of the garden:
Solution:
Let x be the side length of the garden.
By the Pythagorean theorem, we have x² + x² = 18².
2x² = 324.
x² = 162.
x ≈ 12.73 feet (rounded to two decimal places).
The area of the garden is x² = (12.73)² ≈ 162.01 square feet.
Since each planter box is 1 foot by 1 foot, the area of each planter box is 1 square foot.
The number of planter boxes that will fit inside the garden is the area of the garden divided by the area of each planter box:
Number of planter boxes = 162.01 / 1 = 162.01 (rounded to two decimal places).
Therefore, approximately 162 planter boxes will fit inside the square garden.