Question

Apply it
1. The area of a circle is 15,400 m². Find its
circumference. (Take =
22.
​

Answer 1

Answer:

Step-by-step explanation:

area of circle=πr²

15400=πr²

r²=15400×7/22

r²=4900

r=70m²

circumference=2πr

=2×22/7×70

=440m²

Answer 2

Hey mate here we go

1st we have to find radius

so for that

$area \: of \: circle \: is \: = \pi {r}^{2} \\ \: nw \: \pi {r}^{2} = 15400 \\ {r}^{2} = \frac{15400}{\pi} \\ {r}^{2} = 4900 \\ r = 70 \\ \: now \: circumference \: of \: circle \: is \\ \: \pi \times d \: or \: 2\pi \: r \\ 2 \times \pi \times 70 = 439.82m$
2 *(22/7) *70=440m
or Near equal to 440

hope this will help u

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Ty