# FAQ: How To Graph A Circle With A Square Root Radius?

## How do you graph a radius of a circle?

Center away from the origin

1. Locate the center of the circle from the equation (h, v). Place the center of the circle at (3, –1).
2. Calculate the radius by solving for r.
3. Plot the radius points on the coordinate plane.
4. Connect the dots to the graph of the circle with a round, smooth curve.

## Can the radius of a circle be a square root?

Once you ferret out the circle’s center point coordinates, you can then determine the circle’s radius, r. In the equation, you may not see r2, but a number, the square root of which is the actual radius.

## How do you find the radius?

Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.

## How do you convert area to Radius?

Divide the area (in square units) by Pi (approximately 3.14159). Take the square root of the result (Example: 310.56). This is the radius.

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## How do you find the radius with the diameter?

If you know the cylinder’s radius: Multiply the radius by 2 to get the diameter. Multiply the result by π, or 3.14 for an estimation.

## What is the general equation of circle?

Equation of a Circle in General Form The general equation of any type of circle is represented by: x2 + y2 + 2gx + 2fy + c = 0, for all values of g, f and c.

## How do you graph a circle on a calculator?

To graph the circle, press 2nd PRGM (DRAW) #9 Circle. Move the cursor to the “h” value of +2 by using the arrows. Move the cursor to the “k” value of +1 by using the arrows. Press ENTER to set the point for the center of the circle.

## How do you write the standard form of a circle?

The standard form of a circle’s equation is (x-h)² + (y-k)² = r² where (h,k) is the center and r is the radius. To convert an equation to standard form, you can always complete the square separately in x and y.

## Is a circle on a graph a function?

A circle is a set of points in the plane. A function is a mapping from one set to another, so they’re completely different kinds of things, and a circle cannot be a function. The graph of a function,, is the set of pairs, for all in the domain, which can be interpreted as points in a plane.

## What is a circle chart called?

A pie chart (or a circle chart ) is a circular statistical graphic, which is divided into slices to illustrate numerical proportion. While it is named for its resemblance to a pie which has been sliced, there are variations on the way it can be presented. 