Question

help pleaseeeeee


see image attached above​

Answer 1

Answer:

333

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Answer 2

Answer:

Given:

• Area of Circle = 616cm²

Find:

• Circumference of circle?

Solution:

➞ Area of circle = πr²

$: { \implies{ \sf{\pi \: {r}^{2} = 616 }}} \\ \\ : \implies{ \sf{ \frac{22}{7} {(r)}^{2} = 616}} \\ \\ : { \implies{ \sf{ {r}^{2} = \frac{616 \times 7}{22} }}} \\ \\ : \implies{ \sf{ {r}^{2} = \frac{4312}{22} }} \\ \\ : { \implies{ \sf{ {r}^{2} = 196}}} \\ \\ : { \implies{ \sf{r = \sqrt{196} }}} \\ \\ : { \implies { \sf{r = 14}}}$

So, the radius of circle = 14cm

➞ Circumference of circle = 2πr

$: { \implies{ \sf{Circumference = 2 \times \frac{22}{7} \times 14}}} \\ \\ : { \implies{ \sf{Circumference = \frac{44}{7} \times 14}}} \\ \\ : { \implies{ \sf{Circumference = \frac{616}{7} }}} \\ \\ : { \implies{ \sf{Circumference = 88cm}}}$

Therefore,

• Circumference of circle = 88cm