Year 9 Interactive Maths - Second Edition

Surface Areas

The sum of the areas of all external surfaces of a three-dimensional object is called its total surface area (TSA).

Total Surface Area of a Cube

The total surface area (TSA) of a cube is the sum of the areas of its six faces.

Example 21

Find the total surface area of a box whose edges are all 4.5 cm long.

Solution:

Key Terms

surface area, solid, total surface area, TSA, cube

Study Another Topic in Chapter 14: Measurement

[ Perimeter ] [ Circumference of a Circle ] [ Area ] [ Problem Solving ] [ Area of Other Figures ] [ Area of a Trapezium ] [ Area of a Rhombus ] [ Area of a Kite ] [ Area of a Circle ] [ Area of a Annulus ] [ Composite Figures ] [ Surface Areas ] [ Total Surface Area of a Cuboid ] [ Curved Surface Area of a Cylinder ] [ Total Surface Area of a Cylinder ] [ Volume ] [ Volume of a Cuboid ] [ Volume of a Cylinder ] [ Volume of a Triangular Prism ] [ Capacity ] [ Problem Solving ] [ Problem Solving Unit ] [ Symbols ] [ Index ]