You need to treat a golf green with a diameter of 100 feet. The label rate is 3 oz. of product to 1,000 sq ft. How much product do you need to treat the green? (Area of a circle = 3.14xr*squared)

Answer 1

Hi Jeremy,

The area of a circle can be calculated using the formula you included in your problem.

We need to find the area of the green first. If the diameter is 100 feet, the radius will be half of that or 50 feet.

The the area will be:

A = 3.14 r²

A = 3.14 • 50²

A = 3.14 • 2500

A= 7850 ft²

Since the coverage for the treatment is 3 oz for every 1000 ft^2, it would take the following amount of treatment for 7850 ft ²:

3 oz = x oz

1000 ft² 7850 ft²

3 oz • 7.85 = x oz

1000 ft^{2 •} 7.85 7850 ft²

x = 23.55 oz of treatment required