Surface Area and Volume of Composite Solids (HSC SSCE Mathematics Standard): Flashcards

3D shape formed by joining two or more basic shapes

Total area of all outer surfaces

Amount of space occupied by a solid

Add the volumes together

Subtract the removed volume

$V = \pi r^2 h$

$V = \frac{1}{3}\pi r^2 h$

Forgetting surfaces or counting same surface twice

Subtract area of removed shape

Cubic metres (m³) or cubic centimetres (cm³)