Grade 8 topic 6&7 Savvas

In this picture, two parallel lines are cut by a third line, called a transversal. How many vertical angle pairs can you find?

• 2 pairs of vertical angles

• 3 pairs of vertical angles

• 4 pairs of vertical angles

• 8 pairs of vertical angles

In this picture, two parallel lines are cut by a third line, called a transversal. What is the maximum number of Linear Pairs of angles you can find?

• 2 Linear Pairs

• 4 Linear Pairs

• 6 Linear Pairs

• 8 Linear Pairs

We assume that, since the lines are parallel, Corresponding Angles are congruent - for example  $\angle5\cong\angle1$  .  Check any box with Corresponding Angles.

•  $\angle1\ and\ \angle2$  
  

•  $\angle2\ and\ \angle6$  
  

•  $\angle4\ and\ \angle8$  
  

•  $\angle3\ and\ \angle7$  
  

We assume that, since the lines are parallel, Corresponding Angles are congruent - for example  $\angle5\cong\angle1$  .  Check any box with Corresponding Angles.

•  $\angle1\ and\ \angle2$  
  

•  $\angle2\ and\ \angle6$  
  

•  $\angle4\ and\ \angle8$  
  

•  $\angle3\ and\ \angle7$  
  

If  $\angle5\ and\ \angle4$  and  $\angle3\ and\ \angle6$  are both pairs of Alternate Interior Angles, click any Alternate Exterior Angles below.

•  $\angle1\ and\ \angle8$  
  

•  $\angle2\ and\ \angle7$  
  

•  $\angle3\ and\ \angle2$  

•  $\angle7\ and\ \angle8$  

If these lines are parallel,  $\angle2\cong\angle6$ because they're Corresponding Angles.
What is true about  $\angle2\ and\ \angle4$  ?

• They are congruent

• They form vertical angles

• They form a linear pair

• They are non-adjacent angles

What type of angle is shown?

• acute
• obtuse
• right
• straight

Which type of triangle is pictured?

• Equilateral Triangle
• Right Isosceles Triangle
• Obtuse Scalene Triangle
• Obtuse Equilateral Triangle

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o