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More Lessons for GCSE Maths

Math Worksheets

Examples. videos and solutions to help GCSE Maths students learn how to solve word problems involving circles.

**Doubling the Radius and Its Effect on Circumference**

Just what happens to a circles circumference when you double the radius anyway?
**Changing Circle Radius and its Effect on Area**

Change the radius to see what relationship occurs between the old and new circle areas.

Example:

1. Mr.Wences is trying to figure out what size parachute to order for his gym class. Parachute A has a radius of 12 feet. If the parachute B is four times the radius of parachute A, what is the area of parachute B compared to parachute A?

**How to calculate radius of a circle given its circumference?**

More Lessons for GCSE Maths

Math Worksheets

Examples. videos and solutions to help GCSE Maths students learn how to solve word problems involving circles.

Just what happens to a circles circumference when you double the radius anyway?

Change the radius to see what relationship occurs between the old and new circle areas.

Example:

1. Mr.Wences is trying to figure out what size parachute to order for his gym class. Parachute A has a radius of 12 feet. If the parachute B is four times the radius of parachute A, what is the area of parachute B compared to parachute A?

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