[tex]\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]
- Given - a circle with diameter = 9 ft
- To find - area of the given circle
Formula -
[tex]\qquad\quad\bold\pink{area \: of \: circle= \pi \: r {}^{2} }[/tex]
now , we observe that we're not provided with the radius of the circle ! hence , let's find the radius of the circle now ~
[tex]\qquad\quad{radius = \frac{diameter}{2} } \\ \\ \longrightarrow \: radius = \frac{9}{2} = 4.5 \: ft[/tex]
substituting the value of radius in the formula used to calculate area -
[tex]area = \pi \: r {}^{2} \\ \\ \longrightarrow \: \frac{22}{7} \times 4.5 \times 4.5 \\ \\ \longrightarrow \: \frac{445.5}{7} \\ \\ \longrightarrow \: 63.6 \: ft {}^{2} \: (approx.)[/tex]
hope helpful ~
