The circumference of a circle is the perimeter of the circle. To find the circumference you do radius x pi x 2. To find the radius, you work backwards.
50.24 ÷ 2 = 25.12
25.12 ÷ 3.14 = 8cm
The radius is 8cm.
To find the area, you do pi x radius to the power of 2.
3.14 x 8² =
3.14 x 64 = 200.96cm
So the area of the circle is 200.96.