Question

Find the circumference of a circle whose radius is 28cm

Answer 1

given ,
radius = 28 cm

use formula ,
circumference = 2. pi. r
= 2 x 22/7 x 28
= 8 x 22 = 176 cm

Answer 2

Answer:

Circumference of the given circle (C) = 176 cm

Step-by-step explanation:

Given

radius of a circle (r)=28cm

/* We know that ,

$\boxed {Circumference\: of\: a\: circle\: (C)\\=2 \pi r }$

Substitute r value in above formula , we get

$C = 2\times \frac{22}{7}\times 28$

=$ 2\times22 \times 4$

= $ 44 \times 4 $

= $ 176 cm $

Therefore,

Circumference of the given circle (C) = 176 cm

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