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

Which is the ratio of the legs in a right triangle?

• tangent
• sine
• cosine
• secant

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

In this 45-45-90 triangle, I have been given a leg, so to find the other leg I...

• Multiply that leg by 2
• Use the same length for the second leg
• Multiply that leg by √2
• Divide that leg by √2

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

Segment DE is ____________.

• an angle bisector
• a perpendicular segment
• a median
• a midsegment 

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

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

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

What would you use to solve for x?

• Pythagorean Theorem
• Trig
• Inverse Trig

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

What is the correct ratio?

• 20/12
• 12/20
• 12/16
• 16/12

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

Solve sinθ = -1 on θ∈[0, 2π)

• θ = π /2, 3π /2 
• θ = π /2
• θ = 3π /2
• θ = π  

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

 $\cos57\degree\sin55\degree$  

•  $\frac{\cos112\degree-\cos2\degree}{2}$  

•  $\frac{\sin112\degree-\sin2\degree}{2}$  

•  $\frac{\sin2\degree+\sin112\degree}{2}$  

•  $\frac{\sin112\degree-\cos\ 2\degree}{2}$  

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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

What side is adjacent to  $\angle$ J?  

• 9

• 40

• 41

• none

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