Question

the area of circle 15400cmsquare . find its circumference. explain step by step​

Answer 1

Step-by-step explanation:

the circumference of the circle is 440 cm.

Here is the solution to your question

Answer 2

Answer:

Given Area of circle= 15400 square cm

let radius of circle is r

then

$Area \: of \: circle \: = 15400 \\ \pi {r}^{2} = 15400 \\ {r}^{2} = \frac{15400}{\pi} \\ {r}^{2} = \frac{15400}{ \frac{22}{7} } \\ {r }^{2} = 700 \times 7 \\ {r }^{2} = ({7 \times 10) }^{2} \\ r = 70 \: cm \\ \\ now \: for \: cicumfernce = 2\pi r \\ = 2 \times \frac{22}{7} \times 70 \\ = 440 \: cm$

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