Question
LESSON
7.6
Practice continued
For use with pages 473-480
26. Ski Lift A chair lift on a ski slope has an angle
of elevation of 28° and covers a total distance of
4640 feet. To the nearest foot, what is the vertical
height h covered by the chair lift?
SE CATE
4640 ft
27. Airplane Landing You are preparing to land an
airplane. You are on a straight line approach path that
forms a 3° angle with the runway. What is the distance
dalong this approach path to your touchdown point
when you are 500 feet above the ground? Round your
answer to the nearest foot.
Approach path
500
Eatension
You are using extension ladders
to paint a chiemey that is 33 feet tall. The length of
an extension luäder ranges in one- foot increments from
its minimum lengta to its maximam length. For safety.
yea should alungs use an angle of about 75.5° Behveen
the ground and thee ladder.
Your umallest extension lacder has a matimum
henseed of 17 Geek. Flow bigh does this ladfer safely
much on a vertical wall?
+ Vows pilause the Daise off the ludifer 3 feet Gom the
chimney. How muny feet long should the ludder be?
6. To mech the lap of the chimney, you seed a ladder
that maches 10 feet Nigh. How many feet long should
the ladder be?
Chapter 7 P
Answer
26. h = 2590 ft
27. d = 4982 ft
6. 10 ft