Surface Area of a Sphere


Surface Area of a Sphere

A sphere is a solid shape which is completely round like a ball. It has the same curved and total surface area.





Curved or Lateral surface area of a Sphere

4πr²


Total surface area of a Sphere

4πr²












r= radius




Surface Area of a Hemisphere

If we cut the sphere in two parts then is said to be a hemisphere.





Curved or Lateral surface area of a Sphere

2πr²


Total surface area of a Sphere

3πr²

Surface Area of a Sphere | Class: 9 | Chapter: 13 | Exercise: 13.4

Surface Area of a Hemisphere

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Curved or Lateral surface area of a Sphere	4πr²
Total surface area of a Sphere	4πr²

	r= radius

Curved or Lateral surface area of a Sphere	2πr²
Total surface area of a Sphere	3πr²