15. •Choose an object that is
below your eye level.
•Measure the distance (d) in
centimetre (cm) between the
observer and the object you
choose. (use a meter stick or
tape measure)
16. •Measure the angle (θ)
formed using a clinometer.
•Solve the height of the
observer or the structure
where he/she stands
applying the concepts of
trigonometric ratios.
22. QUIZ:
Direction: On a 1 whole sheet
of paper, solve the word
problem involving angle of
depression.
23. 1.Define angle of depression.
2.Illustrate and solve for the
height of the mountain.
24. You and your friends decided to have camping at Mt.
Cabalantian, located between the borders of Samar
and Eastern Samar provinces, somewhere in Brgy.
Balagon, Can-avid, Eastern Samar. While you friends
is setting up for the camping this evening, you decided
to take a walk to the peak of the mountain. After a
100 km of walk finally you’ve reach the top of the
mountain. While at the top you can see your friends
are busy setting up for the night, with the use of a
clinometer you measure the angle depression formed
between you and your friends at the bottom. You get
the angle measure of 63°. Now you wanted to know
the height of the mountain
25. Assignment:
Direction: Illustrate and solve
the following problems applying
the concepts of angle of
depression and trigonometric
ratios. Write you answers in a
one whole sheet of paper.
26. 1.From the top of a rock
50√3 m high, the angle
of depression of a car on
the ground is observed to
be 30°. Find the distance
of the car from the rock.
27. 2. The horizontal distance between
two buildings is 70 m. The angle of
depression of the top of the first
building when seen from the top of
the second building is 45°. If the
height of the second building is
120 m, find the height of the first
building.
