Practice Review 5/16

If all three angles are exactly the same measure, how big is each angle?
Hint:    x + x + x  = 180

• 180 degrees
• 90 degrees
• 50 degrees
• 60 degrees

Find the measure of the angle indicated. 

• 139°
• 66°
• 138°
• 116°

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

How many equal sides does an equilateral have?

• 1
• 2
• 3
• 4

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4
• 55.2
• 20.15
• 19.4

Find the measure of the indicated angle (?) round to the nearest tenth.

• 33°
• 49°
• 39°
• 41°

Choose the correct ratio.

• sin^-1(9/20)
• cos^-1(9/20)
• tan^-1(9/20)
• cos^-1(20/9)

Choose the correct ratio.

• sin^-1(12/29)
• cos^-1(12/29)
• tan^-1(12/29)
• tan^-1(29/12)

What equation can be used to solve for x?

• Sin(40°)= x/40 
• Sin(40º)=x/19
• Cos(40º)=x/19
• Tan(40°)=19/x

Solve for x. Round to the nearest tenth.

• 103.5
• 4.7
• 55.0
• 23.4