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What is the surface area of a cube with a side length of 5 cm? (2021)

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Question: What is the surface area of a cube with a side length of 5 cm? (2021)

Options:

  1. 50 cm²
  2. 75 cm²
  3. 100 cm²
  4. 125 cm²

Correct Answer: 100 cm²

Exam Year: 2021

Solution: 

Surface area = 6 * (side)² = 6 * (5)² = 6 * 25 = 150 cm².

What is the surface area of a cube with a side length of 5 cm? (2021)

Practice Questions

Q1
What is the surface area of a cube with a side length of 5 cm? (2021)
  1. 50 cm²
  2. 75 cm²
  3. 100 cm²
  4. 125 cm²

Questions & Step-by-Step Solutions

What is the surface area of a cube with a side length of 5 cm? (2021)
  • 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 = 6 * (side length)².
  • Step 3: Identify the side length of the cube, which is given as 5 cm.
  • Step 4: Calculate (side length)², which is (5 cm)² = 25 cm².
  • Step 5: Multiply the result by 6: 6 * 25 cm² = 150 cm².
  • Step 6: Conclude that the surface area of the cube is 150 cm².
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