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atroni [7]
3 years ago
6

The three trapezoids have the same base lengths, but different angle measures. Which trapezoid has the greatest area? Explain.

Mathematics
1 answer:
Firlakuza [10]3 years ago
5 0
Well the formula for the area of a trapezoid is as follows:

A=\frac{a+b}{2} h

where a and b are both base measures (a trapezoid has a top and bottom base).

Therefore, if all three have the same base length (the top and bottom lengths themselves being different yet the same on all three), the trapezoid with the greatest angle measure would have the greatest are. This is because with a greater angle measure comes a greater height (Pythagorean theorem).<span />
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From the question we are told that

  The mean of method A is \mu_A =  46.31

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An appropriate set of null and alternative hypothesis to determine whether Method A increases students points by more than 3 points is

The null hypothesis is   H_o  :  \mu_A  - \mu_B  =  0

The alternative hypothesis is  H_a :  \mu_A - \mu_B > 3  

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