What is the cross-sectional area of a circular?

The area of a circle is given by the formula πr2, where r is the radius. It therefore makes sense that the volume of a cylinder would be the area of one of the circles forming its base. If the cross-section is parallel to the axis of symmetry, then the area of the cross-section is simply a circle with an area of πr2.

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

4*Pi*R2
And the formula for the surface area of a sphere of radius R is 4*Pi*R2.

What is CSA and TSA of sphere?

Curved surface area(CSA) = 2 π r2. Total surface area = TSA = 3 π r2. Some solved examples on surface area of sphere – hemisphere. 1) The radius of hemispherical balloon increase from 7 cm to 14 cm as air is being pumped into it.

What is the cross section formed by a plane intersecting a sphere?

SOLUTION: Any plane that intersects a sphere in more than one point will intersect the sphere with a cross section that is a circle.

How do you find the cross-sectional area with the diameter?

The cross-sectional area of the wire A is the area of a circle of radius r, or of diameter d = 2r: A=πr2=π(d2)2.

What is the volume formula for a sphere?

V = 4/3 πr³
The formula for the volume of a sphere is V = 4/3 πr³. See the formula used in an example where we are given the diameter of the sphere.

What is the radius of a sphere?

The radius (r) is the distance from the exact center of the sphere to any point on the surface of the sphere. Generally speaking, you can find the radius of a sphere if you know the diameter, the circumference, the volume, or the surface area. Diameter (D): the distance across the sphere – double the radius.

What is LSA of sphere?

The lateral surface area of a sphere is given by. 4 π r 2. where r is the radius of the sphere. Hence, the Curved Surface Area (CSA) of a Hemisphere is given by. 2 π r 2.

What is the difference between CSA and TSA of hemisphere?

What is the Difference Between Total Surface Area of and Curved Surface Area of Hemisphere? Curved surface area of hemisphere is the area covered by the curved surface of a hemisphere, whereas total surface area is space covered by the curved surface and the base surface of the hemisphere in 2-D plane.

Does a sphere have a uniform cross section?

Spheres are perfectly round geometric objects. Spheres are NOT polyhedra. The intersection of a plane with a sphere is a circle (or a point if tangent to sphere). All cross sections of a sphere are circles.