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

What is the ratio for Cosine?

• Opp/Hyp
• Opp/Adj
• Adj/Opp
• Adj/Hyp

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

Find m<B

• A
• B
• C
• D

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

A 13 ft. ladder is leaning against the house. The top of the ladder touches the house at 10 feet above the ground. How far away is the bottom of the ladder from the house?

• 10 feet

• 7.5 feet

• 8.3 feet

• 3.8 feet

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

Jake is 6 ft. tall. He is standing outside when the angle of elevation of the sun is 28 degrees. How long would his shadow be? 

• 5.3 feet
• 2.8 feet
• 3.2 feet
• 11.3 feet

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

Which equation would be used to solve for x?

• x²+31²=67²
• tan(31)= x/67
• 67²+31²=x²
• cos^-1(31/67)

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

Find the measure of the angle.  Round to the nearest tenth. 

• 66.4
• 63.4
• 47.8
• 69.4

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

tan 180^o

• 0

• 1

• -1

• und

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

Find y.

• 8√2

• 4√2

• 4

• 8

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

cos(5π/3)

• -√2/2
• -1/2
• 1/2
• √3/2

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

How would you find "x" in the diagram?

• Multiply 15 by 2.

• Divide 15 by 2.

• Multiply 15 by √3.

• Divide 15 by √3.

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