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SOH CAH TOA SONG
SOH CAH TOA is a trigonometric ratio
SOH CAH TOA ooo..
and SOH is sin 𝜃 equal to
opposite over hypotenuse...
CHAPTER: TRIGONOMETRY
SUB TOPIC: TRIGONOMETRIC RATIOS
 At the end of the lesson, students should be able to:
 1. Use the previous knowledge of Pythagoras
Theorem to find side...
PYTHAGORAS THEOREM
3 cm
4 cm
5 cm
PYTHAGORAS
THEORM
Use to measure
length of side
for a right-
angled triangle.
TRIGONOMETRIC
RATIOS
Use to measure
angle fo...
TRIGONOMETRIC RATIOS
3 cm
4 cm
5 cm
A
TRIGONOMETRIC RATIOS
3 cm
4 cm
5 cmB
sin 𝐵 =
4
5
cos 𝐵 =
3
5
tan 𝐵 =
4
3
B
B
B
B
B
B
B
B
B
7 cm
24 cm
25 cm
𝜃
𝜃
𝜃
𝜃
𝜃
𝜃
𝜃 𝜃
𝜃
𝜃
𝜃
𝜃
𝜃
~LUCKY TRIG~
1 2 3
4 5 6
5 m
12 m
8 m
17 m
Q2: An ant climbs up 17 m from the bottom to the top of
the hill. The hill is 8 m height. Determine the value of ...
9 m
15 m
Q3: A boy wants to ski 15 m down a hill. The height of
the hill is 9 m. Determine the value of ∡𝜃 in the figure.
9 cm
40 cm
41 cm
11 cm
60 cm
61 cm
12 cm
16 cm
20 cm
 Oh my sin 𝜃
 Goes opposite over hypotenuse
 Don’t forget my cos 𝜃
 The adjacent over hypotenuse
 Don’t get so confus...
Trigonometric ratios
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Trigonometric ratios

  1. 1. SOH CAH TOA SONG SOH CAH TOA is a trigonometric ratio SOH CAH TOA ooo.. and SOH is sin 𝜃 equal to opposite over hypotenuse SOH CAH TOA is a trigonometric ratio SOH CAH TOA ooo.. and CAH is cah 𝜃 equal to adjacent over hypotenuse SOH CAH TOA is a trigonometric ratio SOH CAH TOA ooo.. and TOA is tan 𝜃 equal to opposite over adjacent
  2. 2. CHAPTER: TRIGONOMETRY SUB TOPIC: TRIGONOMETRIC RATIOS
  3. 3.  At the end of the lesson, students should be able to:  1. Use the previous knowledge of Pythagoras Theorem to find sides of a right-angle triangle.  2. Determine trigonometric ratios of a right-angle triangle.  3. Find the angle of a right-angle triangle using any of trigonometric ratio. LEARNING OUTCOME
  4. 4. PYTHAGORAS THEOREM 3 cm 4 cm 5 cm
  5. 5. PYTHAGORAS THEORM Use to measure length of side for a right- angled triangle. TRIGONOMETRIC RATIOS Use to measure angle for a right-angled triangle. PYTHAGORAS THEOREM VS TRIGONOMETRIC RATIOS
  6. 6. TRIGONOMETRIC RATIOS 3 cm 4 cm 5 cm A
  7. 7. TRIGONOMETRIC RATIOS 3 cm 4 cm 5 cmB sin 𝐵 = 4 5 cos 𝐵 = 3 5 tan 𝐵 = 4 3
  8. 8. B B B B B B B B B
  9. 9. 7 cm 24 cm 25 cm 𝜃 𝜃 𝜃
  10. 10. 𝜃 𝜃 𝜃 𝜃 𝜃 𝜃 𝜃 𝜃 𝜃 𝜃
  11. 11. ~LUCKY TRIG~ 1 2 3 4 5 6
  12. 12. 5 m 12 m
  13. 13. 8 m 17 m Q2: An ant climbs up 17 m from the bottom to the top of the hill. The hill is 8 m height. Determine the value of ∡𝜃 using the diagram below.
  14. 14. 9 m 15 m Q3: A boy wants to ski 15 m down a hill. The height of the hill is 9 m. Determine the value of ∡𝜃 in the figure.
  15. 15. 9 cm 40 cm 41 cm
  16. 16. 11 cm 60 cm 61 cm
  17. 17. 12 cm 16 cm 20 cm
  18. 18.  Oh my sin 𝜃  Goes opposite over hypotenuse  Don’t forget my cos 𝜃  The adjacent over hypotenuse  Don’t get so confuse  Of the tan 𝜃 I won’t loose  Coz opposite over adjacent  Is the thing I’ve learnt in lesson TRIGO POEM
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SOH CAH TOA

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