Class 4 Maths Geometry: Circles and Circumference Worksheet

You can easily find the circumference of a circle if you know its diameter by using a simple formula. The formula is Circumference = π × diameter (often written as C = πd).

• The diameter is the distance across the circle, passing through the center.
• Pi (π) is a special number, approximately 3.14 for student calculations.
• Simply multiply the value of pi by the length of the diameter to get the circumference.

For students, there are two main formulas to calculate the circumference of a circle, depending on what information you have. Both formulas are covered in this printable circle worksheet.

• When you know the diameter (d): The formula is C = π × d.
• When you know the radius (r): The formula is C = 2 × π × r.
• For most Grade 4 maths exercises, you can use the value 3.14 for pi (π).

Yes, the circumference is the special name for the perimeter of a circle. While 'perimeter' is used for shapes with straight sides like squares and triangles, 'circumference' is used specifically for the distance around a curved shape like a circle.

• Perimeter: The total distance around any 2D shape.
• Circumference: The perimeter of a circle only.
• Both concepts measure the total length of a shape's boundary.

To calculate the circumference of a circle using its radius, you use the formula C = 2 × π × r. This geometry worksheet provides practice problems using this exact calculation.

• The radius is the distance from the center of the circle to any point on its edge.
• First, multiply the radius by 2 (which gives you the diameter).
• Then, multiply that result by pi (π), which is approximately 3.14.

Yes, 4th graders learn the fundamental concepts of circles as part of their geometry curriculum. This Class 4 Maths worksheet is designed to align with what they learn in school.

• They learn to identify the main parts of a circle like the radius, diameter, and center.
• They are introduced to the concept of circumference as the distance around a circle.
• Students begin to use simple formulas to perform basic calculations.

This Grade 4 maths worksheet provides a complete introduction to calculating the circumference of a circle. It is designed for concept reinforcement and includes several types of activities.

• Clear explanations of terms like radius, diameter, and pi.
• Exercises to find circumference when the radius is given.
• Problems to calculate circumference when the diameter is given.
• Fill-in-the-blanks and image-based questions to reinforce visual learning.

This printable worksheet helps your child master the concept of circumference through structured practice. It is an excellent resource for homework, revision, or extra practice at home.

• Builds Foundational Skills: Reinforces understanding of circle properties and formulas.
• Improves Calculation Speed: Offers drill exercises for using the formulas C = πd and C = 2πr.
• Supports School Curriculum: The content is aligned with the NCERT syllabus for Class 4 Maths.
• Visually Engaging: Uses clear diagrams and large fonts suitable for young learners.

For Grade 4 geometry exercises, the value of pi (π) is simplified for easier calculations. Students are typically instructed to use the decimal value 3.14 for pi.

• Pi (π) is a mathematical constant representing the ratio of a circle's circumference to its diameter.
• Using 3.14 is sufficient for the level of accuracy required in primary school maths.
• This worksheet consistently uses pi = 3.14 in its examples and problems.

Yes, this circumference of a circle worksheet is available as a free, downloadable PDF. This makes it easy for parents and teachers to print for use at home or in the classroom.

• The PDF format ensures the layout and visuals are preserved correctly when printed.
• It is designed to be mobile-friendly for quick previews before downloading.
• Each maths worksheet PDF comes with clear instructions for independent practice.