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A cube has a side length of 4 cm. What is its surface area?

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Question: A cube has a side length of 4 cm. What is its surface area?

Options:

  1. 16 cm²
  2. 32 cm²
  3. 64 cm²
  4. 48 cm²

Correct Answer: 64 cm²

Solution: 

Surface Area = 6a² = 6(4)² = 96 cm²

A cube has a side length of 4 cm. What is its surface area?

Practice Questions

Q1
A cube has a side length of 4 cm. What is its surface area?
  1. 16 cm²
  2. 32 cm²
  3. 64 cm²
  4. 48 cm²

Questions & Step-by-Step Solutions

A cube has a side length of 4 cm. What is its surface area?
  • Step 1: Understand that a cube has 6 faces.
  • Step 2: Know that the formula for the surface area of a cube is Surface Area = 6a², where 'a' is the length of one side.
  • Step 3: Identify the side length of the cube, which is given as 4 cm.
  • Step 4: Substitute the side length into the formula: Surface Area = 6(4)².
  • Step 5: Calculate (4)², which is 16.
  • Step 6: Multiply 6 by 16: 6 * 16 = 96.
  • Step 7: Conclude that the surface area of the cube is 96 cm².
  • Surface Area of a Cube – The surface area of a cube is calculated using the formula 6a², where 'a' is the length of a side of the cube.
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