The element silicon is used extensively as a semiconductor in solid-state devices in the computer and microelectronics industries. For this, hyperpure silicon is needed. The silicon is selectively doped with tiny amounts of boron, gallium, phosphorus or arsenic to control its electrical properties.
Â· just now. Asker's rating. Report Abuse. An acre is a measure of area that I will call A for now. L*W = A which gives L = A/W C = 2*(L + W) = 2*(A/W + W) So, as you can see, the circumference depends on the width (or L, whichever way you want to look at it).
The area of an acre is 43,560 square feet. If an acre is shaped in a perfect square, each side is about 209 feet long. The perimeter equals the sum of the lengths of each side, or approximately 836 linear feet. If the acre's perimeter is circular, the number of linear feet equals the circumference of the plot, or 740 feet.