Advanced MathHardWidth of a rectangle from its diagonal and a length ratio
Advanced Math practice question
A rectangle's length is twice its width, and its diagonal has length 5√5. What is the width of the rectangle?
Answer: 5
w² + (2w)² = 5w² = (5√5)² = 125 → w² = 25 → w = 5.
Common wrong answers
- If you answered 10
- 10 is the length.
- If you answered 25
- 25 is w².
- If you answered 125
- 125 is the square of the diagonal.
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