The following sketch shows the start of one surveyor's attempt to determinethe height of a tall mountain without climbing to the top herself.A2700 feetCa. Use the given information to calculate the lengths of AB and BC. (Usethe table on page 465 to calculate approximate values of trigonometricfunctions as needed.)b. Suppose that a laser ranging device allowed you to find the length ofAB and the angle of elevation ZBAC, but you could not measure the lengthof AC. How could you use this information instead of the informationfrom the diagram) to calculate the lengths of AC and BC?

The following sketch shows the start of one surveyor's attempt to dete

1.	The following sketch shows the start of one surveyor's attempt to determinethe height of a tall mountain without climbing to the top herself.A2700 feetCa. Use the given information to calculate the lengths of AB and BC. (Usethe table on page 465 to calculate approximate values of trigonometricfunctions as needed.)b. Suppose that a laser ranging device allowed you to find the length ofAB and the angle of elevation ZBAC, but you could not measure the lengthof AC. How could you use this information instead of the informationfrom the diagram) to calculate the lengths of AC and BC?
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