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

What is the ratio for cosine?

• H/A
• O/A
• A/H
• A/O

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

A ramp is being built next to a 4-inch high sidewalk. The ramps angle of inclination is 10 degrees.  Estimate the length of the ramp to the nearest tenth of an inch. 

• 4.1 inches
• 3.9 inches
• 22.7 inches 
• 0.7 inches 

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

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

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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

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

Find the missing length.

• 9
• 18
• 4.5
• 16

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

Find x.

• 30°
• 60°
• 90°
• 180°

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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 is the ratio for Cosine?

• Opposite Leg / Adjacent Leg
• Opposite Leg / Hypotenuse
• Adjacent Leg / Hypotenuse
• Hypotenuse / Adjacent Leg

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

Which set of sides would make a right triangle?

• 4,5,6
• 8,10,12
• 5,12,13
• 5,10,12

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

Say 'TRUE' or 'FALSE'
The values of cosec θ and sec θ cannot be smaller than 1

• TRUE
• FALSE

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