Respuesta :

The formulas to circumference is:

[tex]\begin{gathered} C=2\cdot\pi\cdot r \\ C=\pi\cdot d \\ \\ r=\text{radius} \\ d=\text{diameter} \end{gathered}[/tex]

The formula to area is:

[tex]A=\pi\cdot r^2[/tex]

Ver imagen KeyoniY456580