Finding Unknown Angle Measures Parallel Lines and Triangles

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59° 

What is an "Acute" Angle

• Angle that measures 180
• An Angle that measure 90
• An angle that measures more than 90
• An angle that measures less than 90

If 2 of the angles of a triangle are 30 and 70 degrees, the third angle measures...

• 80
• 100
• 60
• 90

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

Find the measure of angle D.

• 140 degrees
• 16 degrees
• 40 degrees
• 90 degrees

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

What is the value of the missing angle?

• 61
• 50
• 60
• 69

Which of the following terms best describes Angle d? (remember that it's outside)

• Remote interior angle
• Corresponding angle
• Exterior angle
• Interior angle

What is the measure of angle b?

• 36^o
• 56^o
• 63^o
• 117^o

Name the angle relationship.

• Alternate Interior
• Alternate Exterior
• Corresponding
• Vertical Angles