Lines and Angles

The following are an example of

• Intersecting Lines

• Parallel Lines

• Perpendicular Lines

• Skew Lines

The following are an example of

• Intersecting Lines

• Parallel Lines

• Perpendicular Lines

• Skew Lines

The following are an example of

• Intersecting Lines

• Parallel Lines

• Perpendicular Lines

• Skew Lines

Which is not an angle on this diagram?

• $\angle AIB$

• $\angle AID$

• $\angle CAD$

• $\angle CIB$
  

Which is an acute angle in this diagram?

• $\angle AIB$

• $\angle AID$

•  $\angle CIA$ 

• $\angle CIB$
  

Which is an obtuse angle in this diagram?

• $\angle AIB$

• $\angle AID$

•  $\angle CIA$ 

•  $\angle DIB$ 
  

Which is a straight angle in this diagram?

• $\angle AIB$

• $\angle AID$

•  $\angle CIA$ 

•  $\angle DIB$ 
  

What type of angle measures 90^o?

• Acute

• Right

• Obtuse

• Straight

What type of angle measures 36^o?

• Acute

• Right

• Obtuse

• Straight

What type of angle measures 97^o?

• Acute

• Right

• Obtuse

• Straight