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Trigonometry Review

English 16 Public

Trigonometry

Study Slideshow

Look at the diagram. Given the position of the angle, name the three sides with values.

Hypotenuse= 5, Opposite= 3, Adjacent= 4

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Look at the diagram. Give the three trig ratios.

sin theta = 3/5, cos theta = 4/5, tan theta = 3/4

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Look at the diagram. Give the trig ratio.

tan 56 = 723/

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Look at the diagram. Give the trig ratio.

tan theta = 9/

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Look at the diagram. Give the trig ratio.

sin20 = h/35

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Look at the diagram. Give the trig ratio.

sin41 = 24/h

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Look at the diagram. Give the trig ratio.

Sin theta = 5/8

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If you are on the ground, looking up towards the top of a cliff, what angle are you creating?

An Angle of Elevation

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If you are on the top of a building and looking down towards the ground, what angle are you creating?

An Angle of Depression

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What is the six-letter word that tells you all of the Trigonometric Ratios that we can use

SOHCAHTOA

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What does "SOH" stand for in SOH CAH TOA?

sin (x)= Opposite/Hypotenuse

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What does "CAH" stand for in SOHCAHTOA?

Cos (x)= Adj/Hypo

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What does "TOA" stand for in SOH CAH TOA?

tan (x)= Opposite/Adjacent

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What is true about the angle of elevation and angle of depression, using the same triangle?

They are both equal

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If you are finding an angle, what do you need to press on your calculator? I want to know all three possibilities

SHIFT--> SIN, COS, OR TAN

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What are Sin, Cos and Tan? What do they help us find?

They are the three trigonometric ratios that help us find the values of angles and sides of a right-angled triangle

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