Question 439895
 Trying to find the length of the 2 sides of a rectangle. Only have the length of the line dissecting the rectangle. Thought using the Pythagorean would be the way to go but got stumped when using the ratios, as I don't have any of the side measurements. 
Given:
C=21.5
Ratio of A:B = 16:9 
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71216:9 is the same as 16x:9x
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Pythagoras:
(9x)^2+(16x)^2 = 21.5^2
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{81+256]x^2 = 462.25
x^2 = 1.3717
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x = 1.1712...
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Cheers,
Stan H.
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