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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? Answer 78 m 90.07 m 110.29 m 156 m
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OpenStudy (swag):
@Luis Rivera
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