## How do you find the surface area of a sphere segment?

We have a section of the sphere with height h. If we slice it into n slices, each with height h/n, then the surface area of each one will be about 2πrh/n, so in total, the area will be about n×2πrh/n=2πrh.

## What is TSA and CSA of sphere?

Surface area (TSA) = CSA = 4πr2. Hemisphere : Curved surface area(CSA) = 2 π r2. Total surface area = TSA = 3 π r2.

**What is the LSA CSA of sphere?**

4πr²

Since the sphere is a complete curved shape therefore the curved surface area is equal to the total area of sphere. It is also called lateral surface area. Surface Area of Sphere = 4πr², where r is the radius of sphere….What is the radius of sphere?

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### What is the formula of LSA of sphere?

The lateral surface area of sphere is expressed as LSA = 2πrh or 4πr2 (If a diameter of sphere = 2r).

### What is 1/8 of a sphere?

Octant may refer to: Octant (plane geometry), one eighth of a full circle.

**What is sphere class 9?**

A sphere is a three dimensional figure (solid figure), which is made up of all points in the space, which lie at a constant distance called the radius, from a fixed point called the centre of the sphere. Half of Sphere is called Hemisphere. Surface Area of a Sphere = 4 π r2, where r is the radius of the sphere.

#### How do you find the radius of a sphere?

How to Calculate the Radius of a Sphere?

- Radius = Diameter / 2. When the surface area is given, the formula used for the radius of a sphere is:
- Radius = ⎷[Surface Area / (4 π)] When the volume is given, the formula used for the radius of a sphere is:
- Radius = ³⎷[3 * Volume / (4 π)]

#### Why surface area of sphere is 4πr2?

The orange should be as round as possible, so the peel represents the surface area of a sphere. STEP 1: Draw a circle around the orange. The circle should have the same radius as the orange. Each circle has area πr², so the total area of the 4 circles is 4πr².

**What do you call 1/4 of a sphere?**

A quarter sphere is exactly one-fourth portion of a full sphere. i.e., if we divide a sphere into 4 equal parts, each portion is called a quarter sphere. Hence, the volume of a quarter sphere is one-fourth of the volume of a sphere.