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Mathematics, 23.11.2019 05:31 mauifrifer3986
Dustin is standing at the edge of a vertical cliff, 40 meters high, which overlooks a clear lake. he spots a fluffy white cloud above the lake, which from his point of view has an angle of elevation of $30^\circ.$ he also sees the reflection of the cloud in the lake, which has an angle of depression of $60^\circ.$ find the height of the cloud above the lake, in meters.
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Dustin is standing at the edge of a vertical cliff, 40 meters high, which overlooks a clear lake. he...
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