How do you find the circumference of a circle with a sphere?

the real radius of the circle is Rsinθ and the circumference of it is therefore c=2πRsinθ; the length of the arc drawn on the sphere is Rθ: call this r.

What is the circumference of a small circle on a sphere whose radius is 12 inches and the plane of the circle is 8 inches from the center of the sphere?

example. A sphere has a radius 6 inches. Find its 1. volume and 2.

Does sphere have circumference?

A sphere doesn’t have a circumference. The surface area of a sphere is 4*pi*R^2, where R is the radius of the sphere.

How do you find the radius of a circle in a sphere?

Use the formula C/2π. Since the circumference is equal to πD, which is equal to 2πr, dividing the circumference by 2π will give the radius. If you have a sphere with a circumference of 20 m, find the radius by dividing 20/2π = 3.183 m. Use the same formula to convert between the radius and circumference of a circle.

How do you find the equator of a sphere?

The two places where the rotation axis intersects the surface of the sphere are the poles (the North Pole and the South Pole). The equator is defined as the intersection of the surface of the sphere with a plane (the equatorial plane) that passes through the center of the sphere and is orthogonal to its rotation axis.

How do you find the angle measure of a sphere?

A spherical angle is a particular dihedral angle; it is the angle between two intersecting arcs of great circles on a sphere. It is measured by the angle between the planes containing the arcs (which naturally also contain the centre of the sphere).

What is the circumference of 18 inch circle?

2 Answers. The answer is 56.57 .

What is circumference of ball?

The Circumference of a circle or a sphere is equal to 6.2832 times the Radius. Circumference = 6.2832 ⋅ R. C = 2 ⋅ π ⋅ R. Figure 3., Circumference is 2 × π × Radius. The Circumference of a circle or a sphere is equal to 3.1416 times the Diameter.

How do you find the circumference of a 3d circle?

Circumference (c) = πd or 2πr These two measurements are used in a formula to calculate the circle’s area. It’s also important to remember that the ratio between a circle’s circumference and its diameter is equal to pi (π).

What is the formula for finding the circumference of a sphere?

The Volume of a Sphere from its Circumference is simple. The Volume of a Sphere is typically computed using the sphere’s radius: V = 4/3 π r^3. Radius and Circumference are related as follows: C = 2 π r. To compute the radius base on the circumference, solve for r: r =C/2π. Combining the two we have: V = 4/3 π (C/2π)^3.

How do you calculate the density of a sphere?

Re: calculating the density of a sphere. For any shape, density = mass/volume. So you need to measure the sphere’s mass on a scale, then measure it’s diameter, divide by 2 to get radius, and compute volume per the formula given above.

Is there a formula to calculate the volume of a sphere?

Write down the equation for calculating the volume of a sphere. This is the equation: V = ⁴⁄₃πr³.

How do you find the diameter if you have the circumference?

How to find the circumference of a circle: The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle. If a circle has a diameter of 4, its circumference is 3.14*4=12.56. If you know the radius, the diameter is twice as large.