its a lecture about problem solving

1. with teacher Jay Vee Garalde

4. sin =
opposite
hypotenuse
cos =
adjacent
hypotenuse
tan =
adjacent
opposit
e
cot = adjacent
opposite
sec = hypotenuse
adjacent
csc = hypotenuse
opposite
O
H
A
θ

5. H
O
A
θ
USES TRIGONOMETRIC RATIOS TO SOLVE REAL-LIFE
PROBLEMS INVOLVING RIGHT TRIANGLES (M9GE-IVE-1)

7. Ricci Rivero is a basketball player, after the
breakup with Andrea Brillantes he decided to focus
on practicing basketball. While shooting, the ball
got stuck at the top of the ring. He stands 20ft away
from the foot of the basketball goal. Using a
clinometer, he measures the angle of elevation to
be 46°. How tall is the basketball ring from the
floor?

8. 46
° 20 ft
x

9. θ = 46°
x= height of the basket
ball hoop
Therefore, the height of
the basketball hoop is
approximately equal to

11. To be safe, a 20ft ladder should not
incline more than 70⁰ angle with the
ground. Suppose the ladder is leaned
against a house at this angle, Find the
distance from the base of the house
to the foot of the ladder.

12. With the use of clinometer find
the angle of elevation of the
wall fan/monitor and the
height of it from the floor.

13. Supposed you dropped a coin, and it
rolls over away from you. Find the
distance from its location to your
position. Use a clinometer to measure
the angle of depression.

14. Make a 1-2 minute/s Math Jingle
on how you are going to solve
problems involving right triangle.

15. A guest in a hotel sights the top and bottom of an
office building from his room’s balcony.The office
building is 200 m away from his hotel. If the
guests see the top of the office building at a 25⁰
angle of elevation and its base at a 40⁰ angle of
depression, how high is the office building?

16. A guest in a hotel, sights the top and bottom of an
office building from his room’s balcony. The office
building is 200 m away from his hotel. If the
guests see the top of the office building at a 25⁰
angle of elevation and its base at a 40⁰ angle of
depression, how high is the office building?

17. 40⁰
200
m
25⁰
x
y
h=?

22. Solve and show your solution
(10pts)
Andrea wants to move on, so she decided to take a
vacation in Batanes. On day one, Andrea is flying a
kite whose string makes a 70-degree angle with the
ground. The kite string is 65 meters long. How far is
the kite from the ground?