To Find the Distance Across a River a Surveyor Chooses $A$

question 64

Essay

To find the distance across a river a surveyor chooses points $A$ and $B$ , $100$ m apart and a reference point $\mathrm { C }$ on the other side of the river. Approximate the distance, $b$ , between $A$ and $\mathrm { C }$ given that $\angle A = 93 ^ { \circ }$ and $\angle B = 62 ^ { \circ }$ .

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Definitions:

Economic Inefficiency

A situation where resources are not optimally allocated, leading to waste or a loss of potential value in an economy.

Profit-maximizing Output

The level of production at which a firm achieves the highest possible profit, determined where marginal revenue equals marginal cost.

MC > P

A situation where the marginal cost of producing an additional unit is greater than the price at which it can be sold, suggesting that production should be decreased.

Pure Monopolist

A firm that is the sole seller of a product or service in a market, without any close substitutes, possessing significant market power.