trig unit 4

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Pre-Calculus

Last updated 8:26 PM on 3/17/24
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20 Terms

1
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45 45 90 triangles; c (hypotenuse) =

a√2

2
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45 45 90 triangles ; a =

c√2 / 2

3
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45 45 90 triangles have two ___ sides

equal

4
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30 60 90 triangles ; a =

c/2

5
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30 60 90 triangles ; b =

√3*c / 2

6
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30 60 90 triangles ; a COULD ALSO =

a√3

7
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30 60 90 triangles ; c =

2a

8
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<p>What triangle?</p>

What triangle?

30 60 90 triangle

9
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<p>What triangle?</p>

What triangle?

45 45 90 triangle

10
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Law of Sines

<p></p>
11
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Law of Cosines

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12
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Sine

opp/hyp

13
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Cosine

adj/hyp

14
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Tangent

opp/adj

15
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What is the reciprocal of Sine?

Cosecant (csc)

16
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What is the reciprocal of Cosine?

Secant (sec)

17
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What is the reciprocal of Tangent?

Cotangent (cot)

18
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Cosecant (csc) =

hyp/opp

19
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Secant (sec) =

hyp/adj

20
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Cotangent (cot) =

adj/opp