Geometry 8-1 through 8-3 Practice Quiz

Find the missing length indicated.

Lesson 8-1. Geometric mean. x=the geometric mean of 36 and 100

• 60

• 100

• 80

• 20

Find the missing length indicated.

Lesson 8-1. 12 is the geometric mean of x and 16

• 64

• 12

• 9

• 100

Find x.

Lesson 8-1. x is the geometric mean of 16 and 9

• 10

• 12

• 14

• 16

Cos X

CAH. cos X = adj/hyp

• ⁸/₁₅

• ¹⁷/₁₅

• ¹⁵/₁₇

• ⁸/₁₇

Sin X

SOH. sin X = opp/hyp

• ¹⁵/₁₇

• ⁸/₁₅

• ¹⁷/₈

• ¹⁵/₈

Tan X

TOA. tan X = opp/adj

• ³⁰/₄₀

• ³⁰/₅₀

• ⁴⁰/₃₀

• ⁴⁰/₅₀

What is the ratio for Sine?

• Hyp/Opp

• Opp/Hyp

• Opp/Adj

• Adj/Opp

What is the ratio for Tangent

• Opp/Adj

• Adj/Opp

• Opp/Hyp

• Hyp/Opp

What is the correct equation to solve for x ?

You know that 17 is opposite of the angle, and you want to know x, which is adjacent of the angle. Which trig function associates opposite and adjacent?

• tan( 46 ) = ¹⁷/_x

• sin ( 46 ) = ^x/₁₇

• tan (46 ) = ^x/₁₇

• cos (46) = ^x/₁₇

What is the correct equation to solve for x?

13 is opposite of the 45 degree angle and x is the hypotenuse. Which trig function relates opposite and hypotenuse?

• tan (45) = ^x/₁₃

• cos (45) = ^x/₁₃

• sin (45) = ¹³/_x

• sin (45) = ^x/₁₃