Trig 1 lesson 4 sohcahtoa

1.
Defining the sine,cosine and tangent ratios for angles in right-angled trianglesPart 4 – Choosing Which Ratio

2.
Choosing the rightRatio

3.
Choosing the RightRatio

4.
Choosing the RightRatioPart of the skill of trigonometry is knowing which ratio to use for any given problem.

5.
Choosing the RightRatioPart of the skill of trigonometry is knowing which ratio to use for any given problem.Since each ratio is unique to the combination of two sides, once you know which two sides are involved in the problem, you can choose the ratio.

6.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH

7.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH

8.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH 𝑇𝑎𝑛𝑔𝑒𝑛𝑡𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡 ->TOA

9.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH 𝑇𝑎𝑛𝑔𝑒𝑛𝑡𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡 ->TOA SOH

10.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH 𝑇𝑎𝑛𝑔𝑒𝑛𝑡𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡 ->TOA SOH CAH

11.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH 𝑇𝑎𝑛𝑔𝑒𝑛𝑡𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡 ->TOA SOHCAH TOA

12.

13.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH 𝑇𝑎𝑛𝑔𝑒𝑛𝑡𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡 ->TOA SOHCAHTOA

14.
Choosing the RightRatioRemember:𝑺𝑖𝑛𝑒𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->SOH 𝑪𝑜𝑠𝑖𝑛𝑒𝜃=𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡𝑯𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒 ->CAH 𝑇𝑎𝑛𝑔𝑒𝑛𝑡𝜃=𝑶𝑝𝑝𝑜𝑠𝑖𝑡𝑒𝑨𝑑𝑗𝑎𝑐𝑒𝑛𝑡 ->TOA SOHCAHTOA

15.

16.
Choosing the RightRatioWe can use SOHCAHTOA as our method of remembering the three ratios

17.
Choosing the RightRatioWe can use SOHCAHTOA as our method of remembering the three ratiosFor any triangle problem we can identify which two sides we have information for

18.
Choosing the RightRatioWe can use SOHCAHTOA as our method of remembering the three ratiosFor any triangle problem we can identify which two sides we have information forHence, we can decide which ratio to use

19.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sides

20.

21.

22.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesH

23.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesH

24.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesOH

25.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesOH

26.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesAOH

27.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationAOH

28.

29.

30.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.AOH

31.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.SOHCAHTOAAOH

32.

33.

34.

35.

36.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.SOHCAHTOAX XAOH

37.

38.

39.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.T O AAOH

40.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.Tangent= O ATangent=𝒈𝟐𝟏.𝟔 AOH

41.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.Tangent= O ATangent=𝒈𝟐𝟏.𝟔 AOH

42.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.T =Opposite ATangent=𝒈𝟐𝟏.𝟔 AOH

43.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.T = OoverATangent=𝒈𝟐𝟏.𝟔 AOH

44.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.T = OAdjacentTangent=𝒈𝟐𝟏.𝟔 AOH

45.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.TOATangent=𝒈𝟐𝟏.𝟔 AOH

46.
Choosing the RightRatioWhen given a trigonometry problem, the first thing to do is to label the Hypotenuse, Opposite and Adjacent sidesNext, circle the two sides that have informationThese two sides tell you which ratio to use, as only one ratio will contain both sides.Tangent=𝒈𝟐𝟏.𝟔 AOH

47.

48.
Choosing the RightRatioSOHCAHTOA

49.

50.
Choosing the RightRatioSOHCAHTOAAOH

51.

52.

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Choosing the RightRatioSOHCAHTOAAOHTangent=𝒔𝒕

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Choosing the RightRatio

58.
Choosing the RightRatioSOHCAHTOA

59.
Choosing the RightRatioSOHCAHTOA

60.
Choosing the RightRatioSOHCAHTOAAHO

61.

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63.

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Choosing the RightRatioSOHCAHTOAA𝐂osine=𝟏𝟗.𝟏𝒇 HO

65.

66.

67.
Choosing the RightRatio

68.
Choosing the RightRatioSOHCAHTOA

69.
Choosing the RightRatioSOHCAHTOA

70.
Choosing the RightRatioSOHCAHTOAAHO

71.

72.

73.

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Choosing the RightRatioSOHCAHTOA𝐒ine=𝟒.𝟒𝟑𝒕 AHO

75.

76.

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Choosing the RightRatio

78.
Choosing the RightRatioSOHCAHTOA

79.
Choosing the RightRatioAOHSOHCAHTOA

80.
Choosing the RightRatioAOHSOHCAHTOA

81.
Choosing the RightRatioAOHSOHCAHTOA𝐂osine𝛉=𝟑𝟐.𝟗𝟏𝟓𝟏

82.
Choosing the RightRatio

83.
Choosing the RightRatioSOHCAHTOA

84.
Choosing the RightRatioSOHCAHTOAOAH

85.
Choosing the RightRatioSOHCAHTOAOAH

86.
Choosing the RightRatioSOHCAHTOA𝐂osine=𝒄𝟐𝟑.𝟔 OAH

87.

88.

89.
Choosing the RightRatioOSOHCAHTOAHA

90.
Choosing the RightRatioOSOHCAHTOAHA

91.
Choosing the RightRatioOSOHCAHTOATangent=𝟑.𝟕𝟖𝒘 HA

92.
Choosing the RightRatio

93.
Choosing the RightRatioSOHCAHTOA

94.
Choosing the RightRatioSOHCAHTOAAOH

95.
Choosing the RightRatioSOHCAHTOAAOH

96.
Choosing the RightRatioSOHCAHTOA𝐒ine=𝒒𝟕.𝟑𝟐 AOH

97.
Choosing the RightRatio

98.
Choosing the RightRatioSOHCAHTOAOHA

99.
Choosing the RightRatioSOHCAHTOAO𝐂osine=𝒄𝒇 HA

100.
Choosing the RightRatio

101.
Choosing the RightRatioOSOHCAHTOAAH

102.
Choosing the RightRatioOSOHCAHTOA𝐒ine=𝒅𝒆 AH

103.
Choosing the RightRatio

104.
Choosing the RightRatioSOHCAHTOAOHA

105.
Choosing the RightRatioSOHCAHTOA𝐒ine𝜃=𝟒.𝟔𝟔𝟖.𝟐𝟒 OHA

106.

107.
Choosing the RightRatioSOHCAHTOAOAH

108.
Choosing the RightRatioSOHCAHTOATangent=𝟒𝟗.𝟗𝟏𝟎𝟎 OAH

109.
Choosing the RightRatioRemember:

110.
Choosing the RightRatioRemember:Label the sides H, O and A

111.
Choosing the RightRatioRemember:Label the sides H, O and ACircle the two sides with information

112.
Choosing the RightRatioRemember:Label the sides H, O and ACircle the two sides with informationChoose the correct ratio

Trig 1 lesson 4 sohcahtoa

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Trig 1 lesson 4 sohcahtoa

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