Identify Point Line Ray Line Segment Acute Angle Obtuse Angle Straight Angle

Which type of triangle is shown in the diagram?

• Right

• Obtuse

• Acute

• Whole

Identify this picture. 

• ray AB

• line AB

• line segment AB

• point AB

• Acute
• Right
• Obtuse

• Acute
• Right
• Obtuse

If an angle measure exactly 180 degrees, how would you classify that angle?

• right

• straight

• acute

• obtuse

What type of angle measures LESS than 90 degrees?

• an acute angle

• an obtuse angle

• a right angle

• a straight angle

What type of angle measures MORE than 90 degrees, but not 180 degrees?

• an acute angle

• an obtuse angle

• a right angle

• a straight angle

What type of angle measures EXACTLY 90 degrees?

• an acute angle

• an obtuse angle

• a right angle

• a straight angle

What type of angle measures EXACTLY 180 degrees?

• an acute angle

• an obtuse angle

• a right angle

• a straight angle

Use the image to answer the question. What is the value of A?

• 121

• 125

• 19

• 9