Question

Hiii everyone any genius who can ans this

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Answer 1

Answer:

It is given that,

Radius of a circle = 21 cm.

We know that π=22/7,

So the circumference of a circle = 2πr

Substituting the values,

=2∗22/7∗21

So we get,

=2∗22∗3

=132 cm.

Answer 2

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Given information :

• Radius of a circle = 21 cm.

$➪ \: We \: know \: that \: π= \: \frac{22}{7} ,$

$➪So \: the \: circumference \: of \: a \: circle = 2πr$

➪ Substituting the values,

$=2 \times \frac{22}{7} \times 21$

➪ So we get,

$=2 \times 22 \times 3$

$=132 cm.$

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