# How to Measure an Inside Diameter?

The diameter of a circle is the length of a straight line from one edge of the circle to the opposite edge, through the center point of the circle. The diameter is always the longest line that can ...
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http://www.ehow.com/how_8398833_measure-inside-diameter.html

## How to Measure the Diameter of a Circle?

When you're working with geometric shapes, there are many formulas that you can use. But before you can use these formulas, you must have some basic shape measurements. To determine the circumferen...
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http://www.ehow.com/how_6352129_measure-diameter-circle.html

## How to Measure an Exhaust Pipe's Diameter?

The location, shape, and size of the exhaust pipe can make it difficult to measure its diameter with conventional instruments. However, a vernier caliper's design allows you to measure the two oppo...
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http://www.ehow.com/how_7466299_measure-exhaust-pipe_s-diameter.html

## How to Measure a Fuel Line Diameter?

Determining the size of a fuel line in a vehicle or motorcycle is important prior to replacing it. The fuel line, along with the other parts of a fuel system, are responsible for delivering the fue...
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http://www.ehow.com/how_7652795_measure-fuel-line-diameter.html

## How to Measure the Diameter of Galvanized Pipe?

When you buy or order galvanized pipe, you must specify the pipe you need by its nominal size. Nominal size is closely related to the inside diameter of the pipe but is not precisely the size it ac...
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http://www.ehow.com/how_6390397_measure-diameter-galvanized-pipe.html