You Are Holding One of the Tethers Attached to the Top

question 33

Multiple Choice

You are holding one of the tethers attached to the top of a giant character balloon in a parade.Before the start of the parade the balloon is upright and the bottom is floating approximately 20 feet above ground level.You are standing approximately a = 130 feet ahead of the balloon (see figure) . ​ ​
Find the length l of the tether you are holding in terms of h, the height h of the balloon from top to bottom.
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