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 doesn't tell the dimensions., In fact, there are an infinite number of different â¦ shapes and dimensions that all have the same area. 1 acre is an area of 43,560 square feet. If it's a circle, the diameter is about 235.5 feet. If it's a square, each side is about 208.7 feet.If it's a rectangle, there are an infinite number of different combinations of length and width that it could have.nswer by Sdlombardi. Confidence votes 105. Because an acre is a measure of area, not length, it is defined in square feet. An acre can be of any shape so long as its area is exactly 43,560 square feet.The most standard shape for an acre is one furlong by one chain, or 660 feet by 66 feet.