Question

the area of a circle is is 154 metre square find the circumference of the circle ​

Answer 1

Step-by-step explanation:

• The area of the circle =

$\pi {r}^{2} = 154 \: {m}^{2}$

where ,

r = radius of the circle

$\pi {r}^{2} = 154 \\ = > \frac{22}{7} {r}^{2} = 154 \\ = > {r}^{2} = \frac{154 \times 7}{22} = 49 \\ = > r = 7 \: m$

Now we got radius of the circle = 7 m

NOW circumference of the circle =

$2\pi \: r = 2 \times \frac{22}{7} \times 7 = 44 \: m$

circumference of the circle = 44 m