Practice Circles (4.2) - Unit 3: Geometry of Shapes & Space: Exploring Form and Measurement
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Circles

Practice - Circles

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the radius of a circle if the diameter is 14 cm?

💡 Hint: Remember, diameter is twice the radius.

Question 2 Easy

Calculate the circumference of a circle with a radius of 2 cm.

💡 Hint: Use the formula C = 2 * π * r.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the circumference of a circle with a diameter of 10 cm?

10π cm
5π cm
20π cm

💡 Hint: Use the relationship between diameter and circumference.

Question 2

True or False: The area of a circle is always larger than its circumference.

True
False

💡 Hint: Consider the formulas for area and circumference.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A circular garden has a diameter of 14 meters. Calculate the circumference and area of the garden.

💡 Hint: Use the formulas for circumference and area.

Challenge 2 Hard

If a circular swimming pool has a radius of 5 meters, what is the arc length of a sector with a central angle of 150 degrees?

💡 Hint: Convert the angle ratio to calculate the arc length.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.