A wheel makes 5000 revolutions for covering 11km.
Find its circumference,diameter and
Area.
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A wheel makes 5000 revolutions for covering 11km
11km = 11000m
In 1 revolution, it will cover = 11000m/5000 = 11/5 m = 2.2m
So its circumference is 2.2m
circumference = πD
⇒ πD = 2.2
⇒ 22/7 × D = 2.2
⇒ D = 2.2 × 7/22 = 0.7m
radius = 0.7/2 = 0.35m
area = πr² = 22/7 × 0.35 × 0.35 = 0.385 m²
11km = 11000m
In 1 revolution, it will cover = 11000m/5000 = 11/5 m = 2.2m
So its circumference is 2.2m
circumference = πD
⇒ πD = 2.2
⇒ 22/7 × D = 2.2
⇒ D = 2.2 × 7/22 = 0.7m
radius = 0.7/2 = 0.35m
area = πr² = 22/7 × 0.35 × 0.35 = 0.385 m²
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