TEKS.MATH.9-12.III.A.3

Based on your unit circle sin(0^o)=

• 1
• -1
• 0
• 1/2

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TEKS.MATH.9-12.III.A.3

Which side is the long leg in this 30-60-90 triangle?

• 4
• u
• v

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TEKS.MATH.9-12.III.A.3

What are x and y in this 30-60-90 triangle?

• x = 6 y = 3√3
• x = 3√2 y = 3
• x = 3√3 y = 6
• x = 3√3 y = 3√2

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TEKS.MATH.9-12.III.A.3

Solve.

• 63, 27
• 63, 33
• 5, 33
• 30, 60

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TEKS.MATH.9-12.III.A.3

What is cos^-1(0)?

• -180
• 90
• 0
• -90

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TEKS.MATH.9-12.III.A.3

Which side of the triangle is the hypotenuse?

• 7
• 25
• 24
• who cares

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TEKS.MATH.9-12.III.A.3

Which trigonometric ratio is correct?

• cosC= adj/hyp
• sinC= adj/hyp
• tanC= adj/hyp
• tanC=adj/opp

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TEKS.MATH.9-12.III.A.3

a = 2.1, b = 7.2,
c = 7.5
Is this a right triangle?

• yes 
• no

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TEKS.MATH.9-12.III.A.3

cos^-1(√(3)/2)

• π/3
• 2π/3
• π/6
• 5π/6

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TEKS.MATH.9-12.III.A.3

Cosecant

• cscθ = opposite / hypotenuse
• cscθ = hypotenuse / adjacent
• cscθ = hypotenuse / opposite

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TEKS.MATH.9-12.III.A.3