Question

the radius of a wheel of a car is 21cm how many km it can cover in2000 revolution
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Answer 1

Answer:

The distance covered by the car is 2.64 km.

Step-by-step explanation:

The radius of the wheel of a car is r = 21 cm.

Compute the circumference of the wheel as follows:

$C=2\pi r=2\times \frac{22}{7}\times 21=132$

The number of revolutions made is, n = 2000.

Compute the distance covered as follows:

$Distance=n\times C\\=2000\times 132\\=264000$

The distance covered is, 264000 cm = 2.64 km.

Thus, the distance covered by the car is 2.64 km.

Answer 2

Answer:

2.64m

Step-by-step explanation:

the answer is 2.64 m