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Ncert solutions

CHAPTERS

EXERCISES

1. Surface Areas and Volumes - Exercise 13.1

2. Surface Areas and Volumes - Exercise 13.2

3. Surface Areas and Volumes - Exercise 13.3

4. Surface Areas and Volumes - Exercise 13.4

5. Surface Areas and Volumes - Exercise 13.5

6. Surface Areas and Volumes - Exercise 13.6

7. Surface Areas and Volumes - Exercise 13.7

A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in \mathbf{m} \mathbf{m}^{3} \mathbf{)}

is needed to fill this capsule? (Assume π = 22/7)

Diameter of capsule = 3.5 mm

Radius of capsule, say r = diameter/ 2 = (3.5/2) mm = 1.75 mm

A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in \mathbf{m} \mathbf{m}^{3} \mathbf{)}

is needed to fill this capsule? (Assume π = 22/7)

Diameter of capsule = 3.5 mm

Radius of capsule, say r = diameter/ 2 = (3.5/2) mm = 1.75 mm

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