Mid-Term Review (Part 2)

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

What is the value of x?

• 37
• 72
• 108
• 18

What are complementary angles?

• Angles that add up to 180°

• Angles that add up to 90°

• Angles that are equal to each other

• Angles that are opposite of each other when lines intersect.

What is an example of a pair of complementary angles?

• 13° and 45°
• 10° and 170°
• 81° and 9°
• 90° and 3°

Find the value of x.

• 24

• 34

• 44

• 54

What does acute mean?

• 90 degree angle

• less than a 90 degree angle

• greater than a 90 degree angle

What does obtuse mean?

• 90 degree angle

• less than a 90 degree angle

• greater than a 90 degree angle

What type of triangle is this?

• scalene
• acute
• equilateral
• isosceles

Identify the triangle by its sides and angle.

• Isosceles Acute

• Scalene Obtuse

• Isosceles Obtuse

• Scalene Acute