# How much Area is an 8 inch circle?

## How much Area is an 8 inch circle?

64π square inches
A=π(8)2=64π square inches.

What is the Area is the diameter is 8?

If the diameter is 8 inches, the radius is 4 inches. The Area of the circle is Pi* r^2 = 16 Pi square inches.

What is diameter of 8 inch circle?

Circumferences and areas of circles with diameters in inches.

Diameter (in) Circumference (in) Area (in2)
8 1/2 26.70 56.75
8 5/8 27.10 58.43
8 3/4 27.49 60.13
8 7/8 27.88 61.86

### What is the Area of a half circle with a diameter of 8 inches?

100.48 square inches
8^2 is 64, so A = 3.14 * 64/2. Simplified, that’s A = 200.96/2, which is 100.48. Therefore, the area of this semicircle is 100.48 square inches.

What is the perimeter of an 8 inch circle?

25.12 inches
The circumference of a circle that has a diameter of 8 inches is 25.12 inches.

What is the diameter 8cm?

Circle with diameter 8cm. Circumference = π × 8cm = 25.1cm to 1 decimal place. Circle with diameter 16.5cm.

## What is the area of an 8 foot circle?

given D is 8′, r ^2 is 16, answer is 16 Pi, or a bit over 50. As the formula for area of a circle is A = π r²).

What is the diameter of the circumference is 8 inches?

We can see that the diameter of the circle is 8 inches. Let’s put this number into the formula. The circumference of a circle that has a diameter of 8 inches is 25.12 inches.

How do you find diameter of circle?

Circle/Diameter

### How do you find the area of a circle if you know the diameter?

How to find the area of a circle: The area of a circle can be found by multiplying pi ( π = 3.14) by the square of the radius. If a circle has a radius of 4, its area is 3.14*4*4=50.24. If you know the diameter, the radius is 1/2 as large.

What is the formula for finding the area of a circle?

The formula for the area of a circle is pi multiplied by the radius of the circle squared. The radius of the circle is the length of a straight line stretching from the center of the circle to the line of circumference. It is equal to half the diameter.

How do you calculate the surface area of a circle?

By using the surface area of a circle formula, to find area, find two times the radius, and multiply the obtained value with pi constant 3.14, then again multiply the value you have got with 4. The resultant value is the surface area of the circle.

## What is the formula for finding the diameter of a circle?

The diameter of a circle can be calculated using the formula d = 2r, where “d” indicates the diameter and “r” denotes the radius of the circle. In terms of circumference, the diameter can be computed using the equation d = c/pi, where “c” represents the circumference and pi is approximately equivalent to 3.142.

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