Trigonometry! #105

Geometry Level 2

An observer 1.5m1.5m tall is 28.5m28.5m away from a chimney. The angle of elevation of the top of the chimney from her eyes is 4545^{\circ}. Then find the height of the chimney.

Express your answer in mm, and enter the numerical part only.

This problem is part of the set Trigonometry.

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