What is the area of a circle with a diameter of 12 ft by pi? Please help me with the formula~thanks!

When you say "12 b by pi" did you really mean the diameter is 12pi ?

if so, then the radius is 6pi
and the area is pi(6pi)^2 = 36pi^3

The formula to calculate the area of a circle is given by:

A = π * r^2

Where A is the area, π is a mathematical constant approximately equal to 3.14159, and r is the radius of the circle.

In this case, we are given the diameter of 12 ft, which is twice the length of the radius. To find the radius, we divide the diameter by 2:

r = d / 2

Substituting the given values, we have:

r = 12 ft / 2 = 6 ft

Now, we can use the formula to calculate the area:

A = π * r^2
= π * (6 ft)^2

So, the area of the circle with a diameter of 12 ft is:

A = 3.14159 * (6 ft)^2

To simplify the calculation, we can use an approximation of π:

A ≈ 3.14 * 6 ft * 6 ft
≈ 3.14 * 36 ft^2
≈ 113.04 ft^2

Therefore, the approximate area of the circle is 113.04 square feet.

The formula to find the area of a circle is A = π r², where A represents the area and r represents the radius of the circle.

To find the area of a circle with a given diameter, you can use the following steps:

1. Find the radius: The radius (r) of a circle is half of its diameter (d). In this case, the diameter is given as 12 ft, so the radius would be 12 ft / 2 = 6 ft.

2. Plug the value of radius into the formula: Substitute the value of the radius (r = 6 ft) into the formula for the area (A = π r²).

A = π * (6 ft)²

3. Calculate the area: Now, multiply the square of the radius by π (pi).

A = π * 36 ft²

So, the area of the circle with a diameter of 12 ft is 36π square feet.