Question

if diameter of a wheel is 7 cm find the distance covered in 10 revolution​

Answer 1

Step-by-step explanation:

given diameter is 7 cm

then it's radius must be 3.5cm

now since a wheel covers a distance equal to it's circumference in one revolution.

therefore distance covered in 10 revolutions is given by:2πr×10=2×(22/7)×3.5×10=7(22/7)10=220cm

Answer 2

Answer:

Since the diameter of the roller is 0.7m, its radius is 0.35m.

In one revolution, the wheel covers the distance of one circumference.

Circumference of the roller of radius 0.35m=2×7=22 ×0.35=2.2m

Distance travelled in 500 revolutions =500×2.2m=1100m

Step-by-step explanation:

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