Volumes & Areas of Solids

Introduction

Look around you! What are the shapes that you see?

In this chapter, we are going to learn more about the shapes with an equal cross-section throughout. One is the prism and the other is known as a cylinder. Here are some examples of prisms and cylinders in the world around you.

Can you spot some other examples?

Toblerone

(Triangular Cross-Section)

Pencils

(Hexagonal Cross-Section)

Minecraft blocks

(Square Cross-Section)

Toilet Roll

Body of a Rocket

Pipes

Success Criteria

At the end of this chapter, students are able to:

  1. Find the surface area and volume of prisms.

  2. Find the surface area and volume of cylinders.

Extend

Students can also extend their understanding of Volumes and Areas by learning to

  1. Construct the 11 nets of a Cube (Olympiad).

Explore!

Use the applet below to explore the shape of some common 3D objects

Shapes like spheres, hemispheres, cones and pyramids will be covered in Secondary 2.