Geometry Puzzle – Challenge 72
Sharing fun math puzzles like the following one with your kids is a great way to get them thinking mathematically.
![Geometry Puzzle – Challenge 72](https://www.effortlessmath.com/wp-content/uploads/2020/04/Challenge-72-512x240.jpg)
Challenge:
The length of a rectangle is three times its width. What is the ratio of its width to its perimeter?
A- 1 : 4
B- 1 : 6
C- 1 : 8
D- 2 : 9
E- 3 : 10
The Absolute Best Book to challenge your Smart Student!
![](https://www.effortlessmath.com/wp-content/uploads/2020/04/answer.png)
The correct answer is C.
Let x be the width of the rectangle. So, the length of the rectangle is 3x.
Perimeter of a rectangle = 2 × Width + 2 × Length =
2x + 2 (3x) = 8x
The ratio of its width to its perimeter is 1 to 8.The Best Books to Ace Algebra
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