Answer:
feet
Step-by-step explanation:
In a 30-60-90 triangle, the ratios of the side lengths of the triangle is 
Where 1 is the shortest leg, root(3) is the longer leg, and 2 is the hypotenuse.
First we can set x equals to the length of the original pole, and so the shorter leg has a length of x/3 and using the ratio of side lengths, we can find that:

Solving for x, we find that

So the length of the original pole would be
feet
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36 - (-20) = 56
SO the number that should be added to -20 to get the answer of 36 is 56.
Hope this helps! Mark as Brainliest please! :)))
3p=pe^tr,,3=e^0.04t ,,then use log to find t
So the grasshopper traveled 2 yards in each jump