# What is the circumference of a 15 foot radius circle?

## What is the circumference of a 15 foot radius circle?

15 in x 3.14 = 47.1 in .

### How big is a 15 foot radius?

The area of the circle is approximately 706.5 square feet.

How do you find the circumference when you have the radius?

Finding the Diameter or Radius The circumference of a circle is equal to pi times the diameter. The diameter is two times the radius, so the equation for the circumference of a circle using the radius is two times pi times the radius.

What is the diameter of a 15 circle?

The diameter of the circle will be 30 inches.

## What is the circumference of a 14 circle?

87.9646 cm
Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm .

### How many square feet is a 15 foot round pool?

Measure the width. Multiply the length by the width of the pool to find the square footage. For instance, 15 feet (length) times 12 feet (width) equals 180 square feet.

How do you find the circumference and area of a circle?

To find the circumference, you double the radius and multiply by pi. To find the area, you square the radius and multiply by pi.

What is the diameter of a 12 foot circumference?

Setting Up the Formula or “The diameter is equal to twelve divided by 3.14.” Divide the circumference by pi to get the answer. In this case, the diameter would be 3.82 inches.

## How do you measure a 15 foot round pool?

Round Pools Just divide the pool’s diameter by two to get the radius, then add six inches for the frame. Put a stake in the center, and measure your string to that length.

### What is the radius of a 16 foot circle?

For example, if the diameter is 16 feet, then the radius is 16 / 2 = 8 feet. The circumference is therefore 2 x 3.14159 x 8 = 50.26 feet. Circles are often used by architects for athletic tracks, recreational areas, buildings, and roundabouts.

What is the circumference of the circle in feet?

The circumference is therefore 2 x 3.14159 x 8 = 50.26 feet. Circles are often used by architects for athletic tracks, recreational areas, buildings, and roundabouts.

What is the circumference of a circle with a diameter of 10cm?

Since the diameter is 10cm, we know that C = π x 10cm = 31.42cm (to 2 decimal places). If a circle has a radius of 3m, what is its circumference? We know that C = 2πr. Since the radius is 3m, we know that C = π x 6m = C= 18.84m (to 2 decimal places). The missing length is the circumference.

## How do you find the circumference of a 4 inch circle?

For example, the circumference of a circle with a radius of 4 inches is simply 2 x 3.14159 x 4 = 25.13 inches. If the diameter is given instead, first divide it by two, then repeat the above process. For example, if the diameter is 16 feet, then the radius is 16 / 2 = 8 feet.