Question

A wheel cover 44km 2000 revolution .find its radius

Answer 1

Answer:

3.5 m

Step-by-step explanation:

44 km in 2000revolutions => 2000×circumference = 44000 m

         Circumference = 22 m

         2×22/7×r = 22

                       r = 7/2 = 3.5 m

Answer 2

The radius of wheel is 3.5 m

Step-by-step explanation:

Distance covered in 2000 revolutions = 44 km

Distance covered in 2000 revolutions = 44000 m

Distance covered in 1 revolution =$\frac{44000}{2000}$

Distance covered in 1 revolution =22 m

Perimeter of wheel =$2 \pi r = 2 \times \frac{22}{7} \times r$

So, $2 \times \frac{22}{7} \times r = 22$

$r = \frac{22 \times 7}{2 \times 22}$

r=3.5

Hence The radius of wheel is 3.5 m

#Learn more:

A wheel makes 2000 revolutions in covering a distance of 88 km find the radius of the wheel

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