Mathematics Grade 6 15 min

Volume of cubes and rectangular prisms

Volume of cubes and rectangular prisms

Tutorial Preview

1

Introduction & Learning Objectives

Learning Objectives Define volume as the amount of space a three-dimensional object occupies. Identify and distinguish between cubes and rectangular prisms based on their attributes. Understand and correctly use cubic units (e.g., cm³, m³) to express volume. Apply the formula $V = l \times w \times h$ to calculate the volume of rectangular prisms. Apply the formula $V = s \times s \times s$ (or $V = s^3$) to calculate the volume of cubes. Solve real-world problems involving the volume of cubes and rectangular prisms. Have you ever wondered how much popcorn fits in a box at the movies? 🍿 Or how much water a fish tank can hold? 🐠 In this lesson, you'll learn all about 'volume' – the amount of space inside three-dimensional shapes like cubes and rectangular pr...
2

Key Concepts & Vocabulary

TermDefinitionExample VolumeThe amount of three-dimensional space occupied by an object or substance.The volume of a shoebox is how much space is inside it for shoes. CubeA three-dimensional shape with six identical square faces. All its edges (sides) are the same length.A standard dice or a Rubik's Cube are examples of cubes. Rectangular PrismA three-dimensional shape with six rectangular faces. Opposite faces are identical.A brick, a cereal box, or a refrigerator are common examples of rectangular prisms. Length (l)The measurement of an object from one end to the other, typically the longest dimension of its base.The length of a classroom might be 10 meters. Width (w)The measurement of an object from side to side, perpendicular to its length.The width of a classroom might be 8 mete...
3

Core Formulas

Volume of a Rectangular Prism $V = l \times w \times h$ To find the volume of a rectangular prism, multiply its length (l), width (w), and height (h). This formula tells you how many cubic units can fit inside the prism. Volume of a Cube $V = s \times s \times s$ or $V = s^3$ Since all sides of a cube are equal, you can find its volume by multiplying the length of one side (s) by itself three times. Volume using Base Area $V = B \times h$ (where $B$ is the area of the base) For any prism, you can find its volume by multiplying the area of its base ($B$) by its height ($h$). For a rectangular prism, the base is a rectangle, so $B = l \times w$.

5 more steps in this tutorial

Sign up free to access the complete tutorial with worked examples and practice.

Sign Up Free to Continue

Sample Practice Questions

Challenging
A rectangular prism has a volume of 300 cm³. If you double its length but keep the width and height the same, what will the new volume be?
A.300 cm³
B.150 cm³
C.1200 cm³
D.600 cm³
Challenging
A fish tank is 50 cm long, 20 cm wide, and 30 cm high. The tank is filled with water to 80% of its total capacity. What is the volume of the water in the tank?
A.30,000 cm³
B.24,000 cm³
C.6,000 cm³
D.3,000 cm³
Challenging
The length of a rectangular prism is three times its width. The height is half of its width. If the width is 4 cm, what is the volume of the prism?
A.24 cm³
B.48 cm³
C.96 cm³
D.192 cm³

Want to practice and check your answers?

Sign up to access all questions with instant feedback, explanations, and progress tracking.

Start Practicing Free

More from Geometric measurement

Ready to find your learning gaps?

Take a free diagnostic test and get a personalized learning plan in minutes.