5. An observer on a cliff wishes to determine the height of the cliff h. He notices two boats on the sea. From his position (D), the angle of depression of the two boats E and F on the sea directly east of him are a and 3 respectively. The boats are x metres apart. (b) h C Determine the length of DE in terms h and a. Determine D, in terms of a and B. В E a

5. An observer on a cliff wishes to determine the height of the cliff h. He notices two boats on the sea. From his position (D), the angle of depression of the two boats E and F on the sea directly east of him are a and 3 respectively. The boats are x metres apart. (b) h C Determine the length of DE in terms h and a. Determine D, in terms of a and B. В E a

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter4: Quadrilaterals

Section4.3: The Rectangle, Square, And Rhombus

Problem 42E: a Argue that the midpoint of the hypotenuse of a right triangle is equidistant from the three...

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