Chapter 9 Right Triangles

What is the length of u and v in this 30-60-90 triangle?

• u = 8 v = 4√3

• u = 4√2 v = 8

• u = 16 v = 8

• u = 4√3 v = 8

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CCSS.HSG.SRT.C.8

Find a.

• 12

• 24

• 24√3

• 16

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CCSS.HSG.SRT.C.8

Find the value of m.

• 10

• 10√2

• 20√2

• √2

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CCSS.8.G.B.8

Find the missing side.

• 11

• 12

• 13

• 14

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CCSS.8.G.B.7

The Pythagorean Theorem ONLY works on which triangle? 

• obtuse

• scalene

• isosceles

• right

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CCSS.8.G.B.8

Find x.

• 42.9

• 21

• 33.3

• 21.9

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CCSS.HSG.SRT.C.8

Find x.

• 28.9

• 61.1

• 64.2

• 25.8

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CCSS.8.G.B.7

Find x.

• 18.6

• 21.3

• 9.2

• 12.2

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CCSS.HSG.SRT.C.8

Find x.

• 15.8

• 12.3

• 25.6

• 15.6

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CCSS.HSG.SRT.C.8

Cece built a skateboard ramp that covers a horizontal distance of 10 ft. 

The ramp rises a total of 3.5 ft.  What angle does the ramp make with the ground?

Round to the nearest degree.

• 19 degrees

• 20 degrees

• 28 degrees

• 35 degrees

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CCSS.HSG.SRT.C.8