Question

Find the area of a circle with a circumference of 6.28 units. _______units^2

Answer 1

Answer:

Area of the circle= $3.14units^2$

Step-by-step explanation:

Circumference of the circle=6.28 units

Finding the radius:

Circumference of a circle =$2*\pi *r$

$6.28=2*\pi *r$

As, $\pi =\frac{22}{7}=3.14$

So,    

           $6.28=2*3.14*r$

          $6.28=6.28*r$

Dividing by '6.28' both side:

        $r=6.28/6.28$

           $r=1unit$

Area of the circle= $\pi *r*r$

                      $=3.14*1*1\\\\=3.14*1\\\\=3.14units^2$

Area of the circle= $3.14units^2$