Equation of sphere

What is the formula of solid sphere?

Formulas of a Sphere

Sphere Formulas
Diameter of a Sphere D = 2 r
Surface Area of a Sphere A = 4 π r2
Volume of a Sphere V = (4 ⁄ 3) π r3

How many circle make a sphere?

Infinite numbers of circles are needed to make one sphere. Since in between any two circles , one can draw another circle.

What are the properties of sphere?

SphereIt is perfectly symmetrical.All points on the surface are the. same distance “r” from the center.It has no edges or. vertices (corners)It has one surface. (not a “face” as it isn’t flat)It is not a polyhedron.

What is a formula of cylinder?

Solution. The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h .

What is the area of a solid sphere?

It is perfectly symmetrical, and has no edges or vertices. A sphere with radius r has a volume of 4 3 π r 3 frac{4}{3} pi r^3 34πr3 and a surface area of 4 π r 2 4 pi r^2 4πr2.

What is a solid sphere?

A solid sphere is just lots of hollow spheres nested together. This is true not only for a sphere of uniform density, but of any sphere in which the density depends only of the distance from the centre – i.e., any spherically symmetric distribution of matter.

How do you find the slope of a sphere?

1 Answers. #1. +5. The general equation for a sphere, centred at (0,0,0) is x2 + y2 + z2 = r2 Rearrange this as z = (r2 – x2 – y2)1/2 The slope of z with respect to x is given by. ∂z/∂x = -x/ (r2 – x2 – y2)1/2 The slope of z with respect to y is given by. ∂z/∂y = -y/ (r2 – x2 – y2)1/2 17 Online Users.

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What is radius of sphere?

The radius of a sphere (abbreviated as the variable r or R) is the distance from the exact center of the sphere to a point on the outside edge of that sphere.

How many sides has a sphere?

A sphere is a solid figure that has no faces, edges, or vertices. This is because it is completely round; it has no flat sides or corners. A cone has one face, but no edges or vertices. Its face is in the shape of a circle.

How many points define a sphere?

four points

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