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30-60-90 Triangle

Interact with the applet below for a few minutes.  Be sure to move the LARGE BLACK VERTICES around before each time you re-slide the slider.  After interacting with this applet, please answer the questions that follow.  
Questions: 1) Suppose the shorter leg of a 30-60-90 triangle is 2 inches long.      Find the length of its longer leg.  Write this length in simple radical form.  2) Suppose the shorter leg of a 30-60-90 triangle is 3 inches long.      Find the length of its longer leg.  Write this length in simple radical form.  3) Suppose the shorter leg of a 30-60-90 triangle is 4 inches long.      Find the length of its longer leg.  Write this length in simple radical form.  4) Suppose the shorter leg of a 30-60-90 triangle is 5 inches long.      Find the length of its longer leg.  Write this length in simple radical form.  5) Suppose the shorter leg of a 30-60-90 triangle is 6 inches long.      Find the length of its longer leg.  Write this length in simple radical form.  Notice any patterns?  If so, describe.   6) Suppose the shorter leg of a 30-60-90 triangle is a units long.      What would the length of its hypotenuse be (in terms of a) ?       What would the length of its longer leg be (in terms of a)?