Question

How do you calculate the area of a circle?

Area of a circle is equal to the diameterdiameter squaredradiusradius squared times diameterheightpiwidth.

Answer 1

Hello!

The answer is:

$Area_{circle}=\pi *radius^{2}$

or

$Area_{circle}=\pi *(\frac{diameter}{2})^{2}$

Why?

We can calculate the area of any circle using the following formula:

$Area_{circle}=\pi *radius^{2}$

Where,

π, is a constant used to calculate the area of the circle.

radius, is the distance from the center to any point of the circle.

Also, we have that:

$radius=\frac{diameter}{2}$

So, we can rewrite the equation by the following way:

$Area_{circle}=\pi *(\frac{diameter}{2})^{2}$

Have a nice day!

Answer 2

Answer:

Use formula:

$Area of circle = \pi (radius)^2 =\pi (r)^2$

Step-by-step explanation:

We need to find about how to calculate the area of a circle.

And match with the given choices. Where given choices are:

Area of a circle is equal to the diameterdiameter

squaredradiusradius squared times diameterheightpiwidth.

I'm not sure what exactly you have typed as choices are not written in proper way.

But I can still answer that.

You just need to apply formula of the area of circle which is given by:

$Area of circle = \pi (radius)^2 =\pi (r)^2$