# Parts Of A Circle Worksheet

• Section 1 of the parts of a circle worksheet contains 26 skills-based parts of a circle questions, in 3 groups to support differentiation
• Section 2 contains 4 applied parts of a circle questions with a mix of worded problems and deeper word problem solving questions
• Section 3 contains 3 foundation and higher level GCSE exam style questions
• Answers and a mark scheme for all questions are provided
• Questions follow variation theory with plenty of opportunities for students to work independently at their own level
• All questions created by fully qualified expert secondary maths teachers
• Suitable for GCSE maths revision for AQA, OCR and Edexcel exam boards
• Free, printable worksheets on related topics, including a 2D shapes and an area and circumference of a circle worksheets, are also available

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### Parts of a circle at a glance

Being able to identify and name the different parts of a circle is a crucial skill to apply to other geometry topics, for example being able to identify the radius of a circle to then be able to find the area of a circle, or identifying the diameter of a circle to be able to find the circumference. Students should be able to identify and name the following part of a circle: centre, radius, diameter, circumference, arc, area, chord, tangent, sector and segment.

The chord of a circle is a straight line segment that connects two points on the circumference of a circle. The longest chord in a circle is the diameter of the circle. The radius of a circle is a straight line segment that connects the centre of the circle to a point on the circumference. The radius is half of the length of the diameter.

A secant is a straight line that goes through the circle at two points – unlike a chord, its endpoints are not on the circumference of the circle. Students don’t need to know this definition for GCSE.

Students need to be able to work flexibly with the correct metric units and decimals, as they will sometimes be asked to measure from a diagram – for example, measure the length of the diameter to the nearest mm.

Looking forward, students can then progress to additional circles, sectors and arcs worksheets and other geometry worksheets, for example an angles in polygons worksheet or area and circumference of a circle worksheet.

For more teaching and learning support on Geometry our GCSE maths lessons provide step by step support for all GCSE maths concepts.

## Do you have KS4 students who need more focused attention to succeed at GCSE?

There will be students in your class who require individual attention to help them succeed in their maths GCSEs. In a class of 30, it’s not always easy to provide.

Help your students feel confident with exam-style questions and the strategies they’ll need to answer them correctly with our dedicated GCSE maths revision programme.

Lessons are selected to provide support where each student needs it most, and specially-trained GCSE maths tutors adapt the pitch and pace of each lesson. This ensures a personalised revision programme that raises grades and boosts confidence.

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