ET 3/25 Geo Review (Angles)

Select all the pairs below that are adjacent angles

•  $\angle a\ and\ \angle b$  

•  $\angle e\ and\ \angle h$  

•  $\angle d\ and\ \angle c$  

•  $\angle a\ and\ \angle g$  

•  $\angle g\ and\ \angle h$  

Select all the pairs below that are vertical angles

• $\angle a\$ and $\angle d$

• $\angle f$ and $\angle b$

• $\angle g$ and $\angle h$

• $\angle e$ and $\angle h$

• $\angle c$ and $\angle b$

A  $90\degree$ angle is known as a ____________ angle

• Acute

• Right

• Obtuse

• Straight

An angle that is greater than $90\degree$  but is less than  $180\degree$  is a _____________ angle.

• Acute

• Right

• Obtuse

• Straight

An angle that is less than $90\degree$  is a _____________ angle

• Acute

• Right

• Obtuse

• Straight

An angle that is $180\degree$  is a _____________ angle

• Acute

• Right

• Obtuse

• Straight