Question

The distance covered by a wheel in 5 revolution in 220m. Find the diameter of the wheel​

Answer 1

Answer:

14cm

Step-by-step explanation:

D = 220/5 = 44

2πr = 44

r = 7cm

So, d = 14cm

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Answer 2

As per the data given in the question,

In the above question, it is given that,

The distance covered by a wheel in 5 revolutions in 220m

We have to find the diameter of the wheel​.

Now the area covered in one revolution is,

$=\frac{220}{5} \\=44$

The area of a circle is $=2\pi r$

$44=2\pi r\\r=\frac{44}{(2\times\pi )}$

$r=7m$

The diameter is $d=r\times 2\\d=7\times 2$

Hence the diameter of the wheel is 14m