Practice Circles - 3 | Chapter 4 : Geometry | ICSE Class 8 Maths
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the radius of a circle if the diameter is 8 cm?

💡 Hint: Recall that Radius = Diameter/2.

Question 2

Easy

Find the circumference of a circle with a diameter of 10 cm.

💡 Hint: Use the formula C = πd.

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 is the relationship between radius and diameter?

  • Diameter is half of the radius
  • Radius is twice the diameter
  • Diameter is twice the radius

💡 Hint: Recall the formula D = 2R.

Question 2

True or False: The circumference of a circle can be calculated with the formula Circumference = πd.

  • True
  • False

💡 Hint: Look back at our earlier formula discussion.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A circular park has a radius of 12 m. What is the area of the park? (Use the formula A = πr².)

💡 Hint: Remember the area formula and substitute the radius.

Question 2

If the diameter of a pool is 24 ft, how many feet long is the surrounding pathway if it adds 2 ft around the pool?

💡 Hint: First, find the new diameter and then use the circumference formula.

Challenge and get performance evaluation