Created by StemPy LabA pole stands on level ground. How does its shadow compare when the Sun's angle of elevation is and when it is ?
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← A chimney 64 m tall stands some way from a canal. From its top, the near edge of the canal is seen 60° below the horizontal and the far edge 30° below. How wide is the canal?A lamp post has two markers on the road, on one side of it and in line with its base, at 20 m and 125 m from the base. Seen from the markers, the top of the post makes elevation angles that are complementary. How tall is the lamp post? →
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