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# The angle of depression of a boat at sea from the top of a cliff is 72$$^{\circ}$$. What is the angle of elevation of the top of the cliff from the boat?...

### Question

The angle of depression of a boat at sea from the top of a cliff is 72$$^{\circ}$$. What is the angle of elevation of the top of the cliff from the boat?

### Options

A) 18$$^{\circ}$$

B) 36$$^{\circ}$$

C) 72$$^{\circ}$$

D) 90$$^{\circ}$$