Unknown Angles with Word Problems

Two angles, <M and <N, form a straight angle. <M measures 50 degrees. Select all of the true statements.

• <N is an acute angle

• The equation 180-50= can be used to find <N

• The measure of <N is 130 degrees

• <N is 180 degrees

Sam drew an acute angle. Which could be the measure of the angle he drew? Select all the correct answers.

• 12 degrees

• 60 degrees

• 90 degrees

• 97 degrees

A circle is divided into parts. Which sum could represent the angle measures that make up the circle? Select all the correct answers.

• 180 + 90

• 120 + 120 + 120

• 20 + 30 + 60 + 70

• 40 + 53 + 77 + 90 + 100

Sam cuts a slice of pizza into two parts. One part has an angle that measures 42 degrees. The other part has an angle that measures 79 degrees. What is the measure of the angle in the original slice that Sam cut?

• 37 degrees

• 42 degrees

• 111 degrees

• 121 degrees

The measure of <ABC is 180 degrees.

The measure of <DBC is 65 degrees.

What is the measure of <ABD?

• 65 degrees

• 115 degrees

• 90 degrees

• 180 degrees

What is the measure of the missing angle?

• 39°
• 129°
• 119°
• 128°

What is the best estimate for angle ABC?

• 90 degrees

• 110 degrees

• 30 degrees

• 150 degrees

How many degrees is this angle?

• 35

• 145

• 90

• 80

How many degrees is the angle?

• 60

• 90

• 120

• 50

What type of angle is shown?

• acute
• obtuse
• right
• straight