Transcript 8-4 Angles of Elevation and Depression To use angles of elevation and depression to solve problems Students will make explicit use of the.

8-4 Angles of Elevation and
Depression
To use angles of elevation and depression to solve problems
Students will make explicit use of the terms “angle of elevation” and
“angle of depression” and will solve for them.
about 631 ft
8-4 Quiz
The following questions are designed to
help you determine how well you
understood today’s lesson.
Be sure to ask if you don’t understand
one you miss.
Record the number you get right on your
portfolio sheet.
1. Find the value of x. Round the length to
the nearest tenth.
15 m
x

A. 26.2 m
B. 10.5 m
C. 8.6 m
D. 12.3 m
Not drawn to scale
Non-Response
Grid
2. Find the value of x. Round the length to the
nearest tenth.
11 ft

x
Not drawn to scale
A. 7.6 ft
B. 10.6 ft
C. 15.3 ft
D. 7.9 ft
Non-Response
Grid
3. Find the value of x. Round the length
to the nearest tenth.

x
18 yd
A. 15.6 yd
B. 10.4 yd
C. 9 yd
D. 31.2 yd
Not drawn to scale
Non-Response
Grid
4. To approach the runway, a small plane must begin a 9 descent
starting from a height of 1125 feet above the ground. To the nearest
tenth of a mile, how many miles from the runway is the airplane at
the start of this approach?

1125 ft
x
A. 1.4 mi
B. 1.3 mi
C. 0.2 mi
D. 7,191.5 mi
Not drawn to scale
Non-Response
Grid
5. Find the angle of elevation of the sun from the ground
to the top of a tree when a tree that is 10 yards tall casts
a shadow 14 yards long. Round to the nearest degree.
A. 54o
B. 36o
C. 46o
D. 44o
Non-Response
Grid
Assignment
8-4 p.519-520
#10-28 even
Be sure to RATE your understanding of the lesson
4-3-2-1-0 after you finish it AND give me one
complete sentence as to why you rated yourself
that way then summarize what the lesson was
about in a sentence or two.