Surface Area of Sphere: Basic Concept and Formulas

Surface area of  Sphere  DETAIL

Ist video : Introduction

After going through this course, the students will understand:

What is meant by Sphere?

What is the difference between Sphere and Hemisphere?

How many faces sphere and hemisphere have?

What are the examples of spheres in the real world?

What is the formula for calculating the surface area of sphere?

If the radius of the sphere is doubled, what will happen to its surface area?

2^nd video: Sphere : Meaning and Surface Area

What is the meaning of sphere?

What is meant by radius of sphere?

What are the properties of a sphere?

Which are some examples of spheres in everyday life?

What is meant by Hemisphere?

What is the difference between Sphere and Hemisphere?

How many faces a sphere has?

What is meant by surface area of a sphere?

What is the formula for calculation of a sphere?

What is meant by “π” in the formula for calculation of a sphere?

3^rd video: Calculating Surface Area of Sphere from radius

How to find the surface area of a sphere when radius is given?

4th video: Calculating Surface Area of Sphere from diameter

How to calculate the surface area of a sphere when diameter of sphere is given?

5^th video: Ratio of surface area of two balloons

How to calculate the ratio of surface areas of the two balloons when radius of a spherical balloon is doubled?

6^th video: Calculating radius from surface area

How to calculate the radius of a sphere when surface area of sphere is given?

7^th video: Ratio of surface area of moon vs. Earth

How to calculate the ratio of surface area of moon and earth when diameter of the moon is approximately one-fourth of diameter of the earth?

Description:

1. What is the meaning of sphere?
2. What is meant by radius of sphere?
3. What are the properties of a sphere?
4. Which are some examples of spheres in everyday life?
5. What is meant by Hemisphere?
6. At how much distance from the center of the sphere lies any point on surface area of sphere?
7. What is the difference between Sphere and Hemisphere?
8. How many faces a sphere has?
9. What is meant by surface area of a sphere?
10. What is the formula for calculation of a sphere?
11. What is meant by “π” in the formula for calculation of a sphere?
12. How to find the surface area of a sphere when radius is given?
13. How to calculate the surface area of a sphere when diameter of sphere is given?
14. How to calculate the ratio of surface areas of the two balloons when radius of a spherical balloon is doubled?
15. How to calculate the radius of a sphere when surface area of sphere is given?
16. How to calculate the ratio of surface area of moon and earth when diameter of the moon is approximately one-fourth of diameter of the earth?