Application of right triangle using trigonometry

Lesson on right triangle using trigonometric ratio

1. Application of right triangle Angle of Elevation

2. Draw the figure stated in the sentence. The boy is flying a kite with a string in his hand.

3. Draw the figure stated in the sentence. A man is leaning the ladder to wall.

4. Draw the figure stated in the sentence. The middle of the tree struck by lightning and the top to middle of the tree rest to the ground.

5. Draw the figure stated in the sentence. A man is looking up on the building.

6. STEM: “ PaintMe !” Mang Omie wants to paint the wall of his house. To be able to do this, he leaned a ladder that reaches the top of the wall and making a 60 degrees angle from the ground. If the height of the wall is 12 ft, what is the length of the ladder that he will use?

7. STEM: “ PaintMe !” Mang Omie wants to paint the wall of his house. To be able to do this, he leaned a ladder that reaches the top of the wall and making a 60 degrees angle from the ground. If the height of the wall is 12 ft, what is the length of the ladder that he will use? ladder W A L L 60                

8. STEM: Jessie wants to fly a kite during summer. So, he stole a thread in his mother’s sew case and use it as a string. When the kite is done, he let it fly on the air using a 100 m string. When the kite is on the air, he wonders how high is the kite when the string is making a 30 angle?              

9. The  angle of elevation  in math is "the angle formed between the horizontal line and the line of sight when an observer looks upwards is known as an angle of elevation". Let the observer at 'O' observe an object that is at 'A'. Then the  horizontal line  is OB and the line of sight is OA. Then the  angle  formed between OA and OB which is angle AOB is the angle of elevation.

10. Practice Drill A 200 ft high television transmitting tower is to be supported by guy wires running from the ground to the top of the tower. The wires make an angle of 63  with the ground. a) How long is each wire? b) How far from the base of the tower must they meet the ground? 200 ft 63   w b

11. Practice Drill If a girl is standing at point P, which is 8 units away from a building, making an angle of elevation of 45 with point Q, find the height of the building.  

12. Assessment A tower stands vertically on the ground. From a point on the ground,   which is 48   m away from the foot of the tower, the angle of elevation of the top of the tower is 30 ° . Find the height of the tower.

13. Assignment Write a problem involving the right triangle using trigonometric ratios. Draw the figure and solve. Rubric for rating is given thru students group chat.