Question

The circumference of a circle is 7xm.

Answer 1

Answer:

A = 3.57 m²

Step-by-step explanation:

Given that,

The circumference of a circle is 7xm.

The expression for the circumference of a circle is given by :

$C=2\pi r$

r is the radius of the circle

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{7}{2\times \dfrac{22}{7}}\\\\r=1.11\ m$

The area of a circle is given by :

$A=\pi r^2\\\\A=3.14\times (1.11)^2\\\\A=3.89\ m^2$

Out of given option,

A = 3.57 m²

So, the area of the circle is 3.57 m².