Chapter 8 Review- Right Triangles

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

In this 45-45-90 triangle, I have been given the length of a leg.  How do I find the length of the hypotenuse?

• It is the same length as the given leg.
• Multiply that leg's length by √2.
• Multiply that leg's length by 2.
• Divide that leg's length by √2.

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

Tags

CCSS.HSG.SRT.C.8

State if the triangle is acute, obtuse, or right.

• acute
• obtuse
• right

Tags

CCSS.4.G.A.2

Acute, right, or obtuse

• Acute
• Right
• Obtuse
• I don't know

Tags

CCSS.4.G.A.2

Find the length of the missing side. 

• 20 in.
• 68 in.
• 16 in.
• 80 in.

What is the acronym to help you remember the ratios to use in trigonometry?

• RIGHTANG
• SOHCAHTOA
• SHOCHATOA

• A
• B
• C
• D

• A
• B
• C
• D

You are making a guitar pick that resembles an equilateral triangle with side lengths of 32 millimeters. What is the approximate height of the pick? (hint: use 30-60-90 theorems)

• 32√3
• 16√3
• 32
• 16√2