geometry
posted by Lisa .
A 30foot cable is suspended between the tops of two 20foot poles on level ground. The lowest point of the cable is 5 feet above the ground. What is the distance between the two poles?

geometry 
Arnie
0' (zero feet)
15' down plus 15' straight back up is 30'. There can be no allowance for horizontal distance. The poles must be colocated.
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