The circumference of a circle is 440m. Find its diameter and area. If a student runs 880m for 5 minutes. Find
the time in which he will run once around the circle.
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circumference of circle =440m
2πr = 440
2×22/7×r=440
44r/7=440
r=440×7/44
r=10×7
r=70m
area of circle=πr²
=22/7×70×70
=220×70
= 15400m²
time taken by a student around the circle in one round =two and half minute
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