the outer and the inner circumference of 2 concrete circle and 880 cm and 308 cm respectively. find the difference between their radii.
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Answered by
26
circumference=2πr
in 1st case,
880=2×22/7×r
880=44r/7
880×7/44=r
140cm=r
in 2nd case,
308=2×22/7×r
308=44r/7
r=49cm
difference=140cm-49cm
=91cm
in 1st case,
880=2×22/7×r
880=44r/7
880×7/44=r
140cm=r
in 2nd case,
308=2×22/7×r
308=44r/7
r=49cm
difference=140cm-49cm
=91cm
Answered by
2
Step-by-step explanation:
ek ans mil gaya kaafi hai ya wapis likhen ans is 91 after difference and before difference 49
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