How do you find the area of a circle with diameter 20 inch?

To find the area of a circle, you can use the formula:

Area = π × r²

Here are the steps to calculate the area:

Understand the given information:

The diameter of the circle is given as 20 inches.
The radius (r) of a circle is half of the diameter. Therefore: r = diameter / 2 = 20 inches / 2 = 10 inches.
Substitute the radius into the area formula:

Area = π × r²
Area = π × (10 inches)²
Area = π × 100 square inches.
Use the value of π:

π is approximately 3.1416.
Substitute this value into the formula: Area ≈ 3.1416 × 100 Area ≈ 314.16 square inches.
Final result:

The area of the circle is approximately 314.16 square inches.
This result represents the space enclosed by the circle.