0

# How do you find the radius and diameter of the circle if you know the area?

Updated: 12/18/2022

Wiki User

11y ago

Best Answer

Area of Circle = pi (radius)2

So , using this formula we can find the radius and also the diameter.

Diameter = 2(radius)

Wiki User

11y ago
This answer is:

## Add your answer:

Earn +20 pts
Q: How do you find the radius and diameter of the circle if you know the area?
Write your answer...
Submit
Still have questions?
Related questions

### How do you find a diameter of a circle?

If you have the circumference: circumference = (pi) * diameter diameter = circumference / (pi) If you have the area: area = (pi) * radius * radius radius = square_root(area / pi) radius = diameter / 2 diameter = 2 * square_root(area / pi)

### How do you find the diameter of the circle if you have the area and radius?

All you have to do is multiply the radius by 2.

### Find diameter when you only have area of a circle?

pi*radius2 = area of a circle radius2 = area/pi radius = square root of (area/pi) diameter = 2*radius

### When radius is unknown then how to find area of a circle?

By dividing its diameter by 2 is equal to the radius of a circle and its area is pi*radius2

### How do you find the diameter if you have the area of a circle?

Since the area of a circle is (Pi)times(Radius squared) then you would reverse the process to find the radius, and hence, the diameter. Divide the area by Pi (3.14159...) and you would have the radius squared. Take the square root of that and you have the radius. To get the diameter, multiply the radius by 2.

### How do i find circumference and area of a circle?

Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle = pi*radius squared

### How do you find the area of a circle using its diameter?

The area of a circle is pi(radius)2 Radius is half the diameter. Simply divide the diameter in half and enter it into the equation 3.14(diameter/2)2

### What is the circumference and area of a circle that has a radius of 4?

To find the circumference of a circle then multiply pi (3.14159265...) by the diameter of the circle. To find the area then multiply pi by the radius squared.

### A circle has a diameter of 16 and the area of 64 Pi find the radius?

In this case, the radius is easiest calculated from the diameter. The radius is simply half the diameter.

### How do you find a area with the diameter of a circle?

Area = Pi(radius)squared. You only need the radius of a circle to find the area. To find the radius, when you have the diameter, divide the diameter by 2, because the diameter forms two radii. After you have found the radius, plug in the radius into the area equation: Area = Pi(radius)squared In other words, you can say the other equation for the area of a circle is: Area = Pi(1/2Diameter)squared

### What is the formula to find the diameter of a circle when the area is known?

If: pi*radius2 = area Then: radius = square root of (area/pi) And: diameter = 2*radius

### How would you find the area of a circle?

To find the area of a circle, here is the formula: A=Pi r2 To find area, you must square the radius and multiply it by pi. If it gives you the diameter, not the radius, divide the diameter by 2, that gives you the radius, then square it and multiply by pi.