Math Problem Statement

A cube has a total volume of 64 cm3 Work out the surface of the cube.

Solution

To determine the surface area of the cube, follow these steps:

Step 1: Calculate the side length of the cube

The volume of a cube is given by:

V=a3V = a^3

where aa is the side length of the cube. Given V=64cm3V = 64 \, \text{cm}^3, solve for aa:

a=643=4cma = \sqrt[3]{64} = 4 \, \text{cm}

Step 2: Calculate the surface area

The surface area of a cube is calculated as:

Surface Area=6a2\text{Surface Area} = 6a^2

Substituting a=4cma = 4 \, \text{cm}:

Surface Area=6×(4)2=6×16=96cm2\text{Surface Area} = 6 \times (4)^2 = 6 \times 16 = 96 \, \text{cm}^2

Final Answer:

The surface area of the cube is:

96cm2\boxed{96 \, \text{cm}^2}

Would you like further clarification or additional details?


5 Related Questions:

  1. What is the formula for the volume of a rectangular prism, and how does it differ from a cube?
  2. If the cube’s surface area was given instead, how would you calculate its volume?
  3. How does the volume change if the side length of a cube doubles?
  4. What are the units for volume and surface area, and why do they differ?
  5. How can the concept of a cube's surface area be applied in real-life situations, such as packaging?

Tip:

When solving problems involving cubes, always ensure that you’re using consistent units for all dimensions and clearly differentiate between volume (cm3\text{cm}^3) and surface area (cm2\text{cm}^2).

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Math Problem Analysis

Mathematical Concepts

Geometry
Volume of a Cube
Surface Area of a Cube

Formulas

Volume of a cube: V = a^3
Surface area of a cube: Surface Area = 6a^2

Theorems

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Suitable Grade Level

Grades 6-8