Question
Find the area of a circle whose diameter is: $1.4\ m.$
✓
Answer
Diameter of the circle $=1.4\text{cm}$
$\therefore\text{Radius}(\text{r})=\frac{1.4}{2}=0.7\text{cm}$
$\therefore\text{Area}=\pi\text{r}^2=\frac{22}{7}\times0.7\times0.7\text{cm}^2$
$=1.54\text{m}^2$
$\therefore\text{Radius}(\text{r})=\frac{1.4}{2}=0.7\text{cm}$
$\therefore\text{Area}=\pi\text{r}^2=\frac{22}{7}\times0.7\times0.7\text{cm}^2$
$=1.54\text{m}^2$
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