IGCSE Maths / Circles, cylinders, cones and spheres

Surface area of a sphere revision notes

Edexcel International GCSE Maths (4MA1), chapter 12: Circles, cylinders, cones and spheres, specification point 4.10a. Part of the full course.

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The surface area of a sphere is the area of its outside: A = 4πr². Choose it instead of the volume formula, and use the radius, not the diameter.

More lessons in Circles, cylinders, cones and spheres

• Circumference of a circle
• Area of a circle
• Semicircles: perimeter and area
• Compound area with circles
• Arc length of a sector
• Area of a sector
• Perimeter of a sector
• Reverse sector problems
• Reverse circle problems
• Volume of a cylinder
• Surface area of a cylinder
• Leaving an answer in terms of pi
• Volume of a cone
• Surface area of a cone
• Volume of a sphere
• Hemispheres and compound solids
• Frustums and truncated cones
• Reverse volume and surface area problems