Math, asked by aditya696982, 11 months ago

If the area of circle is 385cm. Find the circumfrence​

Answers

Answered by itzvishuhere
4

Heya mate!!

Area of a circle is

\pi {r}^{2}

\pi {r}^{2}  = 385 {cm}^{2}

 \frac{22}{7}  \times  {r}^{2}  = 385 {cm}^{2}

 {r}^{2}  = 385 \times  \frac{7}{22}

 {r}^{2}  = 2695 \div 7

 {r}^{2}  = 122.5

r = 11.07

Hope it helps u dear✌️✌️

Answered by singamsricharan1603
0

Answer:

circumference of circle equals to 69.57

Step-by-step explanation:

area of circle =385

area =πr²

385=22/7×r²

r²=385×7/22

r²=122.5

r=√122.5

r=11..068

circumcircumference of circle is equals to 2πr

=22/7×2×11.068

=69.57

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