The radius of the circle is 3.12 m. Calculate the area of the circkle with regard to significant figures.

Explanation

Radius of the circle `r=3.12m`
Area of the circle `A=?`
`A=pir^(2)=3.14xx3.12xx3.12=30.56616`
According to the rule of significant fig.
`A=30.6m^(2)` [Given data has three sig.fig]