# Math

A balloon 150 meters from the observer is rising vertically at constant rate. After 1 minute the angle of elevation is 28 degrees and 29 minutes. What is the angle after 3 minutes?

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1. To figure the height after 1 minute,

h/150 = tan 28°29'

Now, having h, you know that 3h is the altitude after 3 minutes. So, find the angle θ such that

tanθ = 3h/150

Or, in one step,

θ = arctan(3*150*tan28°29')

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2. thanks big help

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3. You're so !!!

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