1. Determine the length of the bar by measuring it with the ruler. The bar may be 10 inches long. This will be L in the formula. 2. Calculate the crosssectional area of the bar.
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Intial volume = final volume from this approach. if you know any one of them % reduction in area or % elangation. you can calculate other.
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How to calculate something is greatly dependent on what exactly it is that you want to calculate. The simplest way to calculate percentages is to divide the amount given by the total
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To use a calculator first punch in a number, for example 2. If you are adding you now want to hit the + button and then the 3 button. To get your answer hit the equal button. For
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