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jennifer2001

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Jan 15, 2013
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-h(b1+b2) where h represents height, b1 represents the length of the top base, and b2 represents the 2 length of the bottom base. what is the area of the trapezoidal table?
the top of the table is 4ft the height is 2ft and the bottom of the table is 3ft​
 
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1
-h(b1+b2) where h represents height, b1 represents the length of the top base, and b2 represents the 2 length of the bottom base. what is the area of the trapezoidal table?
the top of the table is 4ft the height is 2ft and the bottom of the table is 3ft​

I believe your formula should look like this:

Area = (1/2)*h*(b1 + b2)

You are told that one base (the top of the table) has a length of 4 feet, the height is 2 feet, and the length of the other base (the bottom of the table) is 3 feet.

Simply substitute those values for b1, h, and b2....then do the arithmetic.

It will look something like this:

Area = (1/2)*2*(4 + 3)

Now...YOU do the arithmetic, and remember that if all of the dimensions of a two-dimensional (flat) figure are given in feet, the area will be in SQUARE feet.
 
As a help in remembering the formula \(\displaystyle A= \frac{1}{2}h(b_1+ b_2)\), is to think of \(\displaystyle \frac{1}{2}(b_1+ b_2)\) as the average of the two bases. The area of a rectangle with height h and base b is, of course, hb. With a trapezoid, it is h times the average base.
 
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