A) The radius of a circular field is 42 m. Find the perimeter of the field. Also find the length of wire required to fence it with 5 rounds

Question

asked Sep 17, 2021 29.3k views

2 Answers

Unkulunkulu · Answer 1 · 2021-09-22T20:48:51+0000

We are given with the radius of the circular field,

$r = 42 \: m$

And, we have to find the perimeter of the field. Also, we have to find the length of the wire required to fence it with 5 rounds:

We know,

Perimeter of a circle = 2πr, where r is the radius of the circle, So let's find the perimeter by using this formula.

$perimeter = 2\pi r$

$perimeter = 2 * (22)/(7) * \: 42 m$

$perimeter = 2 * 22 * 6 \: m$

$perimeter = \boxed{264 \: m}$

Now, finding the length of the wire which is equals to 5 × Perimeter of the circular field.

$length \: of \: wire = 264 \: m * 5$

$length \: of \: wire = \boxed{1320 \: m}$

And we are done !!

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