Concept explainers
Approximate the length of the lake.
Answer to Problem 13.7MPS
Explanation of Solution
Given information:
A surveyor starts at one end of the lake and walks
Calculation:
Consider the figure:
Suppose that the man starts from point
The law of Cosines is as follows:
Use law of Cosines and substitute
So the length cannot be negative quantity, therefore
Hence, the approximated length of the lake is
Chapter MPS Solutions
Algebra 2
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