Suppose a 6-Ft Person Wishes to Determine the Height of a Bridge

question 42

Short Answer

Suppose a 6-ft person wishes to determine the height of a bridge above the bottom of a canyon, as shown in the figure below. To do this, this person stands at one end of the bridge (point A) and looks down to a point directly below the other end (point B). With the help of a companion, point P is determined to form two triangles. Find the distance to the bottom of the canyon, if ft and ft.
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__________ ft

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An index of the degree to which a characteristic is estimated to be influenced by heredity.

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