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CBSE Class 7 Answered

A road roller makes 1400 revolution.  If the radius of the roller is 2.5 m, the distance overed is 
Asked by New2jiodill | 04 Feb, 2020, 10:02: PM
answered-by-expert Expert Answer
Distance covered in one revolution =  Circumference of the base of the roller
equals 2 πr equals 2 cross times 22 over 7 cross times 2.5 equals 110 over 7 space straight m
The space distance space covered space in space 1400 space revolutions
equals space Distance space covered space in space 1 space revolution space cross times space 1400
equals 110 over 7 cross times 1400 equals 22000 space straight m
Answered by Renu Varma | 05 Feb, 2020, 10:03: AM

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