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CBSE Class 7 Answered

The diameter of a cycle wheel is 70cm . How far will it go in 20 revolutions?
Asked by raashi.bhatjiwale | 07 Mar, 2018, 12:44: PM
answered-by-expert Expert Answer
begin mathsize 16px style Diameter space of space straight a space wheel equals 70 space cm
Distance space covered space in space 1 space revolution
equals Circumference space of space straight a space wheel
equals straight pi cross times Diameter
equals 22 over 7 cross times 70
equals 220 space cm
Hence comma space distance space covered space in space 20 space revolutions equals 20 cross times 220 equals 4400 space cm end style
Answered by Rashmi Khot | 07 Mar, 2018, 02:41: PM

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