The formula for the area of circle is,
[tex]A=\pi(r)^2[/tex]Substitute 2 for r in the formula to obtain the area of circle.
[tex]\begin{gathered} A=\pi(2)^2 \\ =12.56637061 \end{gathered}[/tex]So, exact area of circle is 1.56637061 square centimeter.
Substitute 2 for r and 3.14 for
[tex]\pi[/tex]in the formula to obtain the approximate area of circle.
[tex]\begin{gathered} A=3.14\cdot(2)^2 \\ =12.56 \end{gathered}[/tex]
So approximate area of circle is 12.56 square centimeter.
