Geometry Puzzle – Challenge 72
Sharing fun math puzzles like the following one with your kids is a great way to get them thinking mathematically.
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!
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.
Reza is an experienced Math instructor and a test-prep expert who has been tutoring students since 2008. He has helped many students raise their standardized test scores--and attend the colleges of their dreams. He works with students individually and in group settings, he tutors both live and online Math courses and the Math portion of standardized tests. He provides an individualized custom learning plan and the personalized attention that makes a difference in how students view math.
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