IPMAT Indore 2021
Modern Math
Permutation & Combination
Easy
There are 5 parallel lines on the plane. On the same plane, there are other lines that are perpendicular to the 5 parallel lines. If the number of distinct rectangles formed by these lines is 360, what is the value of ?
There are 5 parallel lines on the plane. On the same plane, there are other lines that are perpendicular to the 5 parallel lines. If the number of distinct rectangles formed by these lines is 360, what is the value of ?
Entered answer:
Correct Answer: 9

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