Question

${\huge{\underline{\small{\bold{\red{find\:the\: circumference\:of\:a\: circle\:whose\: radius\:is\:49?}}}}}}$


${\huge{\underline{\small{\bold{\green{don't\:spam:)}}}}}}$




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Answer 1

$\bf{\underline{\underline \blue{Solution:-}}}$

$\sf\underline{\red{\:\:\: AnswEr:-\:\:\:}}$

• The circumference of the circle = 308 Cm

$\sf\underline{\red{\:\:\: Given:-\:\:\:}}$

• The radius of the circle is 49 Cm.

$\sf\underline{\red{\:\:\: Need\:To\: Find:-\:\:\:}}$

• The circumference of the circle = ?

$\bf{\underline{\underline \blue{Explanation:-}}}$

$\sf\underline{\red{\:\:\: Formula\:Used\: Here:-\:\:\:}}$

$\bigstar \: \boxed{ \sf \: Circumference \:of \:the\: circle = 2 \pi r }$

$\sf\underline{\green{\:\:\: Now,Putting\:the\: values:-\:\:\:}}$

$\dashrightarrow \sf {The\: Circumference\:of\:the\: circle = 2 \times \dfrac{22}{7} \times 49}$

$\dashrightarrow \sf {The\: Circumference\:of\:the\: circle = 98 \times \dfrac{22}{7} }$

$\dashrightarrow \sf {The\: Circumference\:of\:the\: circle = 308\:Cm}$

$\sf\underline{\green{\:\:\: ThereFore:-\:\:\:}}$

• The circumference of the circle is 308 Cm.

$\rule{200}{2}$

Answer 2

Given ,

The radius of circle (r) = 49 cm

We know that , the circumference of circle is given by

Circumference = 2πr

Thus ,

$\sf \mapsto Circumference = 2 \times \frac{22}{ \cancel{7}} \times \cancel{49 }\\ \\\sf \mapsto Circumference = 44 \times 7 \\ \\ \sf \mapsto Circumference = 308 \: \: cm$

$\therefore \underline{\sf{The \: circumference \: of \: circle \: is \: 308 \: m}}$