A Straight Road Makes an Angle Of $15 ^ { \circ }$

question 22

Multiple Choice

A straight road makes an angle of $15 ^ { \circ }$ with the horizontal. When the angle of elevation of the sun is $57 ^ { \circ }$ , a vertical pole at the side of the road casts a shadow $d = 77$ feet long directly down the road, as shown in the figure. Approximate the length of the pole.

• A) 94.60 ft
• B) 94.90 ft
• C) 62.67 ft
• D) 94.00 ft
• E) 95.50 ft

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Market Failure

A situation in which the allocation of goods and services by a free market is not efficient, often leading to a net social welfare loss.

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Expenses that a business or economic activity imposes on unrelated third parties or the environment, which are not reflected in market prices.

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