GCSE Maths - How to find the Area and Circumference of a Circle (Circles Part 1)

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*** WHAT'S COVERED ***
1. Definitions and identification of key parts of a circle.
* Circumference (C).
* Diameter (D).
* Radius (r).
2. Formulas for calculating the area and circumference of a circle.
3. Step-by-step calculations for area and circumference using worked examples.
* Calculating area and circumference when the radius is known.
* Calculating area and circumference when the diameter is known.

*** EXAM BOARD INFO ***
This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
A-level - Not in your course

*** CHAPTERS ***
0:00 Intro & Key Parts of a Circle
0:51 Formulas for Area and Circumference
1:44 Example 1: Calculating Area (Given Radius)
2:53 Example 1: Calculating Circumference (Given Radius)
3:54 Example 2: Calculating Area (Given Diameter)
4:35 Example 2: Calculating Circumference (Given Diameter)

*** PLAYLISTS ***
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