Advanced MathEasy–MediumFactor by which a square's area grows
Advanced Math practice question
The area of a square with side length s is given by A(s) = s². By what factor does the area increase when the side length is tripled?
Answer: 9
A(3s) = 9s² = 9·A(s).
Common wrong answers
- If you answered 3
- 3 is the factor for the side, not the area.
- If you answered 6
- 6 doubles 3.
- If you answered 27
- 27 is 3³, the factor for a cube's volume.
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