Question

if numerical value of circumference and area is same then area is

Answer 1

Circumference = Area
2πr = πr²
⇒ r = 2 unit.
Area = πr²
        = π(2)²  
        = 4π sq. units or 4×22/7 = 12.57 sq. units

Answer 2

Area = Circumference
πr² = 2πr
⇒ r = 2
Area = πr²
        = π(2)²
        = 4π
        = 4(3.14)
        = 12. 56 sq units