answersLogoWhite

0


Best Answer

If a circle has radius r, then the area of the circle is pi r2, pi being about 3.14159.

I beleive the function you are looking for is A(c)=c/2*r

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you express the area of a circle as a function of its radius?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Is the radius of a circle a function of its area?

You can certainly express the radius as a function of its area, yes. If the area is known, you can solve the formula for the area of the circle to uniquely get the radius. (The quadratic equation has two solutions; you will of course choose the positive solution for the radius.)


Express the radius of a circle as a function of its area?

A = (pi)r2 A/pi = r2 √(A/pi) = r


Express in terms of the area of a circle whose radius is 6?

A circle with a radius of 6 units has an area of 113.1 square units.


What is the area of a circle with the radius of 4.9cm?

The area of a circle is defined as pir^2. The radius here is 4.9 cm, so pi4.9^2=24.01 pi. If you were to express it in terms of a number, it would be about 75.43.


What is the area of a circle if the radius is 9m?

The area of a circle if the radius is 9m 254.5m2


What is the radius of a circle with the area of 36?

The radius of a circle with the area of 36 is 3.385


What is the area of a circle with the radius of 21?

The area of a circle of radius 21 is 1386


What is the area of circle with a radius of 35?

Area of a circle = pi*radius squared


What is the area of a circle with the radius of 14.4?

The area of a circle with a radius of 14.4 is 651.4


What is the area of a shaded circle with a radius of 135?

A circle with a radius of 135 units has an area of 57,255.53 square units.


What is the area of a circle of the radius of 10m?

A circle with a radius of 10m has an area of 314.16 m2


What is the area of a circle with radius of 2m?

The area of a circle with a radius of 2m is: 12.566 m2