Respuesta :

Circumference = 2πr
6.28 = 2πr
12 = 2n/3 +7n/3 -6 6.28 = 2×3.14×r
r =6.28/2×3.14
r= 1 unit
Now,
Area of a circle = πr² = 3.14×1×1= 3.14 sq.units