Applying the Pythagorean theorem, the approximate number of bushes that are needed is: 23 bushes.
How to Apply the Pythagorean Theorem?
Mrs. Cheung's triangular backyard is a bright tri9angle. Therefore, applying the Pythagorean theorem, we would find the third length as shown below:
Third length = √(30² - 12²)
Third length = √(900 - 144)
Third length = √756
Third length = 27.5 feet.
Find the perimeter of the triangular backyard:
Perimeter = 27.5 + 30 + 12
Perimeter = 69.5 feet
The approximate number of bushes that are needed = 69.5/3 ≈ 23 bushes.
Therefore, applying the Pythagorean theorem, the approximate number of bushes that are needed is: 23 bushes.
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