Respuesta :
The question asks us to find the area of a circle, which can be represented by the formula [tex]A=\pi{r}^2[/tex]. We are told to use [tex]3.14[/tex] for pi, but we still have the 'r', which represents the radius. To find the radius, we halve the given diameter, giving us [tex]r=6.6[/tex]. When we plug in all of our derived values into the formula, we get that the area of the circle is approximately [tex]\boxed{136.78 \\\\\ cm^2}[/tex]. Hope this helped and have a great day!
The area of circle can be calculated using area formula. The area enclosed in a circle is [tex]\pi r^2[/tex].
The area of circle is [tex]136.78\:\rm cm^2[/tex].
Given:
The diameter is [tex]13.2\:\rm cm[/tex].
Calculate the radius of the circle.
[tex]r=\dfrac{d}{2}[/tex]
Substitute the value.
[tex]r=\dfrac{13.2}{2}\\r=6.6 \:\rm cm[/tex]
Write the formula to calculate the area of a circle.
[tex]A=\pi r^2[/tex]
Substitute the value in above expression.
[tex]A=\pi r^2\\A=3.14\times 6.6^2\\A=176.78 \:\rm cm^2[/tex]
Thus, the area of circle is [tex]136.78\:\rm cm^2[/tex].
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