# How to Find the Area of a Semicircle?

A semicircle is half a circle. They can appear on all types of math tests and in all types of math questions, and most of the time, the area will be very useful in solving a problem involving this ...
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http://www.wikihow.com/Find-the-Area-of-a-Semicircle

## How to Find the Volume of a Semicircle?

Because a semicircle is a two-dimensional shape, it has an area rather than volume. You might need to know the area of a semicircle if you want to paint a semicircular area or if you want to lay so...
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http://www.ehow.com/how_8218842_volume-semicircle.html

## How to Calculate Concrete for a Semicircle Driveway?

Calculate the amount of concrete necessary for your semicircle driveway by recognizing that the driveway's shape is that of a half cylinder. The shape of the concrete slab can be visualized as cutt...
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http://www.ehow.com/how_6832605_calculate-concrete-semicircle-driveway.html

## How do you find the area of a rectangle whose leng2The width of a photograph is 4 cm more than three tenths of the length If the width is 13 cm find the length?

4 x 13 = 52cm2 Length x Width = Area

http://wiki.answers.com/Q/How_do_you_find_the_area_of_a_rectangle_whose_leng2The_width_...

## How to Find the Area of an Octadecagon?

An octadecagon is an 18-sided polygon. The area of an octadecagon can be calculated by the equation for regular polygon area, which is 1/4 * number of sides * one side's measurement squared * cotan...
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http://www.ehow.com/how_8116130_area-octadecagon.html