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Grade Upto college level Algebra

If 8 parallel lines in a plane are intersected by a family of 10 parallel lines. find the no. of parellelograms formed.

Profile image of Manvendra Singh chahar
12 Years agoGrade Upto college level
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1 Answer

Profile image of SHAIK AASIF AHAMED
12 Years ago
Hello student,
If m parallel lines in a plane are intersected by a family of n parallel lines.The no. of parellelograms formed will be mn(m-1)(n-1)/4
given m=8 and n=10
Hence no.of parallellograms formed=(80*7*9)/4=1260
Thanks and Regards
Shaik Aasif
askIITians faculty

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