# Basic Geometry : How to find the length of the diameter

## Example Questions

### Example Question #11 : How To Find The Length Of The Diameter

Find the diameter of a circle that has an area of .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #12 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #13 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #11 : Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #15 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #16 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #17 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #18 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #19 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .

Explanation:

Recall how to find the area of a circle:

Next, plug in the information given by the question.

From this, we can see that we can solve for the radius.

Now recall the relationship between the radius and the diameter.

Plug in the value of the radius to find the diameter.

### Example Question #20 : How To Find The Length Of The Diameter

Find the diameter of a circle whose area is .