Respuesta :



I belive it's
PI r^2
or pie × radius squared

Answer:

The formula is [tex]A=\pi r^{2}[/tex].

Find the radius and you can always find the area.

Remember! radius is half of diameter!

Step-by-step explanation:

For example:

Lets say that the diameter is 4. Half of 4 is 2. Therefore the radius is two!

Using the formula [tex]A=\pi r^{2}[/tex],

[tex]A ≈ 12.57[/tex]

Hope this helps!


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