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If a rectangle has a length of 7 cm and an area of 28 cm², what is its width?

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Question: If a rectangle has a length of 7 cm and an area of 28 cm², what is its width?

Options:

  1. 3 cm
  2. 4 cm
  3. 5 cm
  4. 6 cm

Correct Answer: 4 cm

Solution: 

Width = Area ÷ length = 28 cm² ÷ 7 cm = 4 cm.

If a rectangle has a length of 7 cm and an area of 28 cm², what is its width?

Practice Questions

Q1
If a rectangle has a length of 7 cm and an area of 28 cm², what is its width?
  1. 3 cm
  2. 4 cm
  3. 5 cm
  4. 6 cm

Questions & Step-by-Step Solutions

If a rectangle has a length of 7 cm and an area of 28 cm², what is its width?
  • Step 1: Understand the formula for the area of a rectangle, which is Area = Length × Width.
  • Step 2: Identify the values given in the question: Length = 7 cm and Area = 28 cm².
  • Step 3: Rearrange the formula to find the Width: Width = Area ÷ Length.
  • Step 4: Substitute the values into the formula: Width = 28 cm² ÷ 7 cm.
  • Step 5: Calculate the Width: 28 cm² ÷ 7 cm = 4 cm.
  • Area of a Rectangle – The area of a rectangle is calculated by multiplying its length by its width.
  • Basic Division – To find the width, divide the area by the length.
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