Advanced MathEasySetting up an equation for a square's side
Advanced Math practice question
A square has an area of 49 square units. Which of the following equations could be used to find the side length s of the square?
- A. s² = 49Correct
- B. 4s = 49
- C. 2s = 49
- D. s = 49²
Answer: A. s² = 49
The area of a square is the side length squared.
Why the other answers are wrong
- B. 4s = 49
- 4s is the perimeter, not the area.
- C. 2s = 49
- 2s is not an area.
- D. s = 49²
- This squares the area instead of the side.
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