NCERT Class 9 Solutions: Surface Areas and Volumes (Chapter 13) Exercise 13.4 – Part 1 (For CBSE, ICSE, IAS, NET, NRA 2023)
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Q-1 . Find the surface area of a sphere of radius:
Solution:
- Radius of the sphere (r)
Surface area
- Radius of the sphere (r) , Surface area
- Radius of the sphere (r) , Surface area
Q-2 Find the surface area of a sphere of diameter:
Solution:
- () , Surface area
- () , Surface area
- 2
- () , Surface area