Wednesday, April 18, 2012

Chapter 11: Area of Parallelograms

After today's lesson, I found out that the formulas to calculate the area of a square/rectangle is the same as any parallelogram. This is because all parallelograms are just rectangles with triangles placed on the ends. The formula can either be written A=length x width or A=base x height.
Tennessee is a good example on how to find the area of a parallelogram. Since it is roughly a parallelogram, we can apply this formula to it. Tennessee's dimensions are as follows: length=440 miles and width=120 miles approximately. The area of Tennessee can, therefore, be calculated by multiplying 440 by 120.
A=440 x 120 ---> A=52,800 miles squared.
This gives us a fairly rough estimate of the area of Tennessee. The actual area is 42,143 miles squared. The difference is about 10,000 miles which is pretty large; however, it is an educated guess and a reasonable way to find the answer.

1 comment:

  1. The information you provided is very helpful in understanding properties of parallelogram its a very nice blog.I have something to say about parallelograms a parallelogram has four sides the opposite sides are parallel and equal,The point where two adjacent sides meet is called Vertex a parallelogram has four vertices a parallelogram has four angles and the diagonals of a parallelogram bisect each other.
    Pythagorean Identities

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