Formula for area of circle:
A=πr²
Here diameter, d= 6 cm
Radius, r= d/2 = 6/2 = 3 cm
Put values
A= 3.14 x 3²
A=3.14 x 9
A=28.26 cm²
Answer: 28.26 cm²
The value of x is a number :)
C = 11*(2*d) Try it and see that it fits every sample you have. Again this can be simplified to
C = 22 * d
