Challenge:
If a side of a square is increased by \(20\%\), what percent of the area of the square will be increased?
A- \(20\%\)
B- \(40\%\)
C- \(44\%\)
D- \(100\%\)
E- \(200\%\)
The Absolute Best Book to challenge your Smart Student!

The correct answer is C.
Area of a square = side times side.
Let X be the side of a square. Then, the side of the square is \(X^2\).
If a side of a square is increased by \(20\%\), then the area of the square will be increased by 44 percent:
\(1.2X × 1.2X = 1.44X^2\)
\(1.44X^2\) is 0.44 or \(44\%\) bigger than \(X^2\)
More math articles
- 10 Most Common 6th Grade MCAS Math Questions
- FREE 8th Grade PSSA Math Practice Test
- Full-Length 7th Grade IAR Math Practice Test-Answers and Explanations
- 3rd Grade STAAR Math Practice Test Questions
- ISEE Upper-Level Math Worksheets: FREE & Printable
- Top 10 SAT Math Prep Books (Our 2022 Favorite Picks)
- Top 5 Books for math teachers
- Top 10 4th Grade STAAR Math Practice Questions
- 10 Most Common 5th Grade PARCC Math Questions
- How to Solve Composition of Functions? (+FREE Worksheet!)
What people say about "Geometry Puzzle - Challenge 65"?
No one replied yet.