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

Solve for x and y in the special right triangle.

• x = 3, y = 6
• x = 6√2, y = 12√2
• x = 2√3, y = 4√3
• x = 3√2, y = 6√2

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

Find the missing length.

• 21
• 18
• 16
• 24

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

Determine if the following set of numbers are Pythagorean Triples.
18, 73, 75

• Yes
• No

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

Tangent = ?

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

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

The hypotenuse of a triangle is...

• Invisible
• A myth
• The side opposite the right angle in a right triangle

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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

Which set of side lengths does not form a right triangle?

• 38, 80, 90
• 16, 63, 65
• 36, 77, 85
• 14, 15, 29

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

How do we prove a triangle is a right triangle?

• Prove all sides are different lenghts
• Show that the three sides satisfy the pythagorean theorem
• Show that opposite angles are congruent
• Show that two sides are congruent

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

Your family wants to purchase a new laptop with a 17" widescreen. Since the 17 inches represents the diagonal measurement of the screen (upper corner to lower corner), you want to find out the actual dimensions of the laptop. When you measured the laptop at the store, the height was 10 inches, but you don't remember the width. Calculate the width of the laptop to the nearest tenth of an inch.

• 7 inches

• 10 inches

• 19.7 inches

• 13.7 inches

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

Find h₂

• 16.73 ft

• 22.51 ft

• 18.59 ft

• 20.79 ft

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