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

In this 45-45-90 triangle, I have been given the length of a leg.  How do I find the length of the hypotenuse?

• It is the same length as the given leg.
• Multiply that leg's length by √2.
• Multiply that leg's length by 2.
• Divide that leg's length by √2.

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

A building 62 feet tall casts a shadow 21 meters long.  At what angle is the sun shining on the building?

• 19.80
• 18.71
• 70.20
• 71.29

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

Find a. 

• 2
• 4
• 2/√2
• 2√3

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

Find HG

• 28
• 14
• 41
• 7

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

What is the period?

• 1
• π/2
• 2
• 2π

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

What is the measure of angle x?

• 70

• 160

• 135

• 20

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

cos(30^o)

• - ½
• √3/2
• 2√3 /3
• ½

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

Which expression is correct for "y"?

• y = tan^–1(31/23)

• y = sin^–1(31/23)

• y = cos^–1(31/23)

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

1 + cot²x =

• sec²x

• sec²x - 1

• tan²x

• csc²x

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

Sin X

• ¹⁵/₁₇

• ⁸/₁₅

• ¹⁷/₈

• ¹⁵/₈

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