Question

the area of a circle is 154cm. then the circumference of the circle is?​

Answer 1

Answer:

Circle

CircleSolve for circumference

CircleSolve for circumferenceC≈43.99

CircleSolve for circumferenceC≈43.99A Area

CircleSolve for circumferenceC≈43.99A Area 154

CircleSolve for circumferenceC≈43.99A Area 154Using the formulas

CircleSolve for circumferenceC≈43.99A Area 154Using the formulasA=πr2

CircleSolve for circumferenceC≈43.99A Area 154Using the formulasA=πr2C=2πr

CircleSolve for circumferenceC≈43.99A Area 154Using the formulasA=πr2C=2πrSolving forC

CircleSolve for circumferenceC≈43.99A Area 154Using the formulasA=πr2C=2πrSolving forCC=2πA=2·π·154≈43.99115

Answer 2

$\pink✏ \green{ \: Given :- }$

$\pink { Area \: of \: Circle \: is \: 154 \: {cm}^{2} }$

$\pink✏ \green { \: To \: Find :-}$

$\pink {Circumference \: of \: Circle}$

$\pink✏ \green { \: Required \: Solution:-}$ $\blue {Let \: the \: radius \: be \: 'r'}$

$\blue✪ \: \red {Area \: of \: Circle = \pi {r}^{2} }$

$\green↪\blue{154 = \frac{22}7 \times {r}^{2} }$

$\green ↪ \blue {{r}^{2} = \frac{154 \times 7}{22} }$

$\green↪\blue {{r}^{2} = \frac{1078}{22} }$

$\green↪\blue{ {r}^{2} = 49}$

$\green ↪\blue {\sqrt{ {r}^{2} } = \sqrt{49} }$

$\green↪\blue{ r = 7}$

$\blue✭\pink{\: Radius =7cm}$

$\pink❍ \red { \: Circumference \: of \: Circle = 2\pi r}$

$\orange↪ \blue {Circumference \: of \: Circle =2 \times \frac{22}{7} \times 7}$

$\orange↪\blue {Circumference \: of \: Circle =2 \times 22}$

$\green ➢ \: \red {Circumference \: of \: Circle =44cm}$

$\red {Your\: question\: is\: wrong.}$

$\green {✏Question- The\: area\: of\: a\: circle\: is\: 154cm². \:Then\: the\: circumference\: of\: the\: circle\: is?}$