6. Two houses are 75 m apart. From the roof of the shorter house the angle of elevation to the top of the taller house is 21° and the angle of depression to the base of the taller house is 52". Find the heights of both houses to one decimal place. Show your work for full marks. [4 Thinking Marks] 7. Explain when to use the sine law and when to use the cosine law. Create example triangles to support your answer. [4 Communication Marks]

6. Two houses are 75 m apart. From the roof of the shorter house the angle of elevation to the top of the taller house is 21° and the angle of depression to the base of the taller house is 52". Find the heights of both houses to one decimal place. Show your work for full marks. [4 Thinking Marks] 7. Explain when to use the sine law and when to use the cosine law. Create example triangles to support your answer. [4 Communication Marks]

Trigonometry (11th Edition)

11th Edition

ISBN:9780134217437

Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Chapter1: Trigonometric Functions

Section: Chapter Questions

Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.

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