Geometry: An Interactive Journey to Mastery

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33° 15°

12

ab

Figure 17.10

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65°

41°

32

a

b

Figure 17.11

3. At 6 p.m., the Sun has an angle of elevation of 10.6°. At this time, when you stand tall, your shadow is 32
   feet long. To the nearest inch, how tall are you?


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6. 8VHFigure 17.12 to explain why, if two angles x and y are complementary,
   then the sine of one angle equals the cosine of the other.


7. A jet climbs at an angle of 15°. How much altitude does it gain after
   it moves through the air 100 feet?

x

y

Figure 17.12