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A section in a stained glass window is shaped like a trapezoid. The top base is 4 centimeters and the bottom base is 2.5 centimeters long. If the area of the section of glass is 3.9 square centimeters, how tall is the section?

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RedRicinid
The area of a trapezoid can be found with the formula [tex]A=\frac{b_1+b_2}2h[/tex] where b1 and b2 are the bases and h is the height. Let's plug in the values that we know and solve for h.

[tex]3.9=\frac{4+2.5}2h[/tex]

[tex]3.9=\frac{6.5}2h[/tex]

[tex]3.9=3.25h[/tex]

[tex]\boxed{h=1.2\ cm}[/tex]

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