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Mathematics 20 Online
OpenStudy (anonymous):

A helium-filled balloon is attached to a long string and is at a height of 78 m from the ground. The string is tied to a hook on the ground and makes an angle of 30° with the ground, as shown below. What is the length of the string, in meters?

OpenStudy (anonymous):

i know its to use tan but how

OpenStudy (anonymous):

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