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

I have been given the short leg in this 30-60-90 triangle.  How do I find the length of the hypotenuse?

• Multiply 4 by 2
• Multiply 4 by √3
• Multiply 4 by √2
• Divide 4 by √3

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

Which scenario describes the picture shown?

• A 5 foot ramp is 8 feet away from a building.  What is the angle that the ramp makes with the ground?
• A 5 foot ramp leans against an 8 foot structure.  What is the angle that the ramp makes with the ground?
• An 8 foot ramp leans
  against a building 5 feet away.  What angle does the ramp make with the ground?
• A 5 foot man is 8 feet away from a building.  What is the angle of elevation?

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

Find the measure of the indicated angle.

• 9.39
• 55.2
• 20.2
• 19.4

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

What is 45 degrees in radians?

• π/4
• π/3
• π/6
• 2π/3

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

If you are given the two sides that are not the hypotenuse, which trig function should you use?

• sine
• cosine
• tangent
• cotangent

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

sin (π/2)

• √3/2
• √2/2
• 1/2
• 1

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

sin2u =

• (sinu)(cosu)
• 2(sinu)(cosu)
• (sinu)^2
• 2(sinu)^2

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

_{^{Find the missing side}}

• 48
• 108
• 83.6
• 72

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

Which is the correct ratio for the sine ratio?

• $\frac{adjacent\ }{hypotenuse}$

• $\frac{opposite\ }{hypotenuse}$

• $\frac{adjacent\ }{opposite\ }$

• $\frac{opposite\ }{adjacent\ }$

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

Find the exact value of the trigonometric function.
 $\cot\left(-120\degree\right)$  

•  $\frac{\sqrt{3}}{3}$  

•  $-\frac{\sqrt{2}}{2}$  

•  $\sqrt{3}$  

•  $-\frac{\sqrt{3}}{3}$  

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