Surface area of a sphere

The surface area of a sphere is the area of the surface that encloses the ball. Another name for the surface of a ball is a “sphere”. For a sphere with radius r, we usually write the surface area as A and work it out as

$A = 4 \cdot π \cdot r^{2}$

For example, a sphere with radius r = 4 has surface area

$A = 4 \cdot π \cdot 4^{2} = 4 \cdot π \cdot 16 = 64 π \approx 200.96$

Calculator: work out the surface area of a sphere

Chapters: Area of a square, Area of a rectangle, Area of a circle, Sector of a circle, Area of a trapezium, Area of a parallelogram, Area of a rhombus, Area of a regular polygon, Surface area of a sphere, Surface area of a cube, Surface area of a cuboid, Surface area of a cylinder, Surface area of a cone, Surface area of a pyramid

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