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

Find the value of ∠A.

• 39 degrees
• 49 degrees
• 51 degrees
• 59 degrees

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

cot π/2

• undefined
• 0
• 1
• 1/2

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

The Pythagorean Theorem is
a² + b³ = c⁴

• false
• true

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

What is the length of y in this 45-45-90 triangle?

• 8√2
• 4√2
• 4
• 8

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

sin(π/2)

• 1
• 0
• -1
• √2/2

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

An electrical wire is attached to the top of a home to a stake in the ground. The home is 68 feet tall. If the angle formed by the electrical wire and the house is 52°, what is the length of the wire? Round to the tenths.

• 110.5 ft.
• 86.3
• 41.9
• 53.6

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

Al aplicar el teorema de Pitagoras en alguno de los

triángulo que aparecen en la figura, solo un

planteamiento es el correcto, ¿cuál es?

• h² + b^{2 =} c²

• c² + b² = a²

• a² + m² = b²

• Ningún planteamiento es correcto

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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

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

Which of the following angles are co-terminal to 450^o?

• 450^o, -450^o

• 90^o, -270^o

• 270^o, -90^o

• 420^o, -330^o

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