Practice Volume of a Sphere - 11.4 | 11. Surface Areas And Volumes | CBSE 9 Mathematics
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11.4 - Volume of a Sphere

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the volume of a sphere with a radius of 3 cm?

πŸ’‘ Hint: Use the formula \\( \\frac{4}{3} \\pi r^3 \\).

Question 2

Easy

Calculate the volume of a hemisphere with a radius of 4 cm.

πŸ’‘ Hint: You need the hemisphere volume formula, \\( \\frac{2}{3} \\pi r^3 \\).

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What formula gives the volume of a sphere?

  • A) \\( \\pi r^3 \\)
  • B) \\( \\frac{4}{3} \\pi r^3 \\)
  • C) \\( 2 \\pi r^3 \\)

πŸ’‘ Hint: Remember the formula we discussed earlier.

Question 2

True or False: A hemisphere has the same volume as a quarter of a sphere.

  • True
  • False

πŸ’‘ Hint: Think about how a hemisphere relates to a whole sphere.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a sphere with a radius of 10 cm, calculate how much more water it would displace if we replace it with a sphere of 15 cm radius.

πŸ’‘ Hint: Use the volume formula for both spheres and find their difference.

Question 2

A hemispherical water tank has a diameter of 6 m. If it is fully filled with water, how many liters of water does it hold? (1 mΒ³ = 1000 liters)

πŸ’‘ Hint: Calculate the radius from the diameter and use the hemisphere volume formula.

Challenge and get performance evaluation