For the same reason they chose to measure volume in cubic units
yes it can
Because they (IMO) have the simplest area to find, to just square side. Triangles are half of a square Rectangles are uneven. Circles are rounded, and hard to find the area of. Plus, a square has 2 equal dimensions, so think 2D.
You can't.Square inches is a measure of area, where as pounds is a measure of weight, and monetary value.
Concentric circles have the same center. They are not necessarily the same size. If two concentric circles have the same area, then they are congruent, meaning they coincide when superimposed.
Pi is an experimentally found value that always works for circles, so we use it. Mathematical pi is not pie. it is a Greek letter pi.
25 centimeters is the area lol haha I figured this out
The derivative of a circles area is it's circumference.
It depends on what value you require: th length of a side, a measure of an angle, the area. And it also depends on what information you do have.
The measure of area is Lebesgue measure on the plane.
Pi (3.141...) is used for circles, and circles only. You use it to find the area and circumfrence.
Area of any circle = pi*radius2