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CBSE Class 7 Answered

the diameter of a wheel is 1.26m.how far will it go in 20 revolutions?
Asked by raashi.bhatjiwale | 07 Mar, 2018, 12:40: PM
answered-by-expert Expert Answer
begin mathsize 16px style Diameter space of space straight a space wheel equals 1.26 space straight m
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 1.26
equals 3.96 space straight m
Hence comma space straight d istance space covered space in space 20 space revolutions equals 20 cross times 3.96 equals 79.2 space straight m end style
Answered by Rashmi Khot | 07 Mar, 2018, 02:21: PM

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