Given \csc A=\frac{5}{4}cscA= 4
5
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and that angle AA is in Quadrant I, find the exact value of \tan AtanA in simplest radical form using a rational denominator.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π