Question

The area of circle is 49 m² Find
its circumfoerence​

Answer 1

Answer:

$Area \: of \: circle = \pi \: {r}^{2}$

$\pi \: {r}^{2} = 49 {m}^{2}$

${r}^{2} = \frac{22 \times \cancel 49 {}^{7} }{ \cancel7}$

${r }^{2} = 22 \times 7 = 154$

$r = \sqrt{154} = 12.409$

$Circumference \: of \: circle=2\pi \: r$

$\implies \: 2 \times \frac{22}{7} \times 12.409$

$\implies \: c= 77.97$

Answer 2

$\huge \sf{ \underline{ \underline{Answer}}}$

$\sf \: Area \: of \: circle = \pi \: {r}^{2}$

$\sf\pi \: {r}^{2} = 49 {m}^{2}$

$\bf {r}^{2} = \frac{22 \times \cancel 49 {}^{7} }{ \cancel7}$

$\sf{r }^{2} = 22 \times 7 = 154$

$\sf \: r = \sqrt{154} = 12.409$

$\sf \: Circumference \: of \: circle=2\pi \: r$

$\implies \: 2 \times \frac{22}{7} \times 12.409$

$\bf\implies \: c= 77.97$