Ch 8 Trig Review

Find the value of x.

• 12

• 
• 
• 

What is the geometric mean between 4 and 9?

• 7.2

• 5

• 3.6

• 6

Find x.

• 176

• 
• 
• 

Find the geometric mean between 8 and 12.

• 9.8

• 96

• 3.2

• 10

Write a similarity statement identifying the three similar triangles in the figure.

• ΔVUT∼ΔUAT∼ΔVAU

• ΔVUT∼ΔTAU∼ΔVAU

• ΔVUT∼ΔUAT∼ΔUAV

• ΔVUT∼ΔUAT∼ΔVUA

Find x, y, and z.

• x ≈ 13.6, y ≈ 10.4, z ≈ 17.6

• x ≈ 13.6, y ≈ 15.7, z ≈ 26.7

• x ≈ 13.6, y ≈ 26.7, z ≈ 15.7

• x ≈ 13.6, y ≈ 11, z ≈ 18.6

Find x.

• about 26.4

• 698

• 36

• 6

Find x.

• 715

• about 26.7

• 1597

• about 40

Classify the triangle with the given side lengths as acute, obtuse, or right.

10, 11, 20

• acute

• obtuse

• right

Find x and y.

• x = 4.5; y = 4.5√3

• x = 9√2; y = 9

• x = 18; y = 9√3

• x = 9√3; y = 4.5