ICSE Class 8 Answered
A circular track has outside circumference of 484m . If the widtj of the track is 7m, what is inside circumference?
Asked by hskumbhkar | 29 Nov, 2018, 06:45: AM
Expert Answer
circumference = 2Πr
484 = 2Πr
r = 77m....this is outer radius
inner radius = 77 - 7 = 70m
inside circumference = 440m
Answered by Arun | 29 Nov, 2018, 09:36: AM
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