The area of a flat, or
plane figure is the number
of unit squares that can be contained within it. The unit square is usually some
standard unit, like a square meter, a square foot, or a square inch.
So, if you
are trying to find the area of a sheet of paper that is 9 inches by 11 inches, and
the unit square you want is the square inch, then there are 9 X 11 = 99
square inches in that sheet of paper. In this 4 inch by 3 inch rectangle,
each little square is a square inch. Count the little
one-inch squares and find the total area. Is it the same as multiplying the
width of the rectangle by the height?
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