The video tutorial explains different types of angles using diagrams. It starts with identifying a right angle by comparing it to two lines intersecting perpendicularly. The tutorial then moves on to identifying acute angles, which are less than 90 degrees, using examples from a diagram. Finally, it discusses the properties of acute, right, and obtuse angles, emphasizing their differences and how to identify them in various contexts.

What type of angle is formed when two lines meet at a point and one line is vertical while the other is horizontal?

• Acute angle

• Right angle

• Straight angle

• Obtuse angle

Tags

CCSS.4.G.A.1

If an angle is exactly 90 degrees, what is it called?

• Obtuse angle

• Reflex angle

• Right angle

• Acute angle

Tags

CCSS.4.G.A.1

Which of the following angles is less than 90 degrees?

• Straight angle

• Right angle

• Obtuse angle

• Acute angle

Tags

CCSS.4.G.A.1

In a diagram, if angles B and D are less than 90 degrees, what type of angles are they?

• Straight angles

• Right angles

• Acute angles

• Obtuse angles

Tags

CCSS.4.G.A.1

What is the term for an angle that is less than 90 degrees?

• Right angle

• Acute angle

• Reflex angle

• Obtuse angle

Tags

CCSS.4.G.A.1

If an angle is less than 90 degrees, which category does it fall into?

• Right angle

• Acute angle

• Obtuse angle

• Straight angle

Tags

CCSS.4.G.A.1

What type of angle is formed when the angle is less than 90 degrees?

• Obtuse angle

• Acute angle

• Right angle

• Reflex angle

Tags

CCSS.4.G.A.1

Which angle is characterized by being less than 90 degrees?

• Right angle

• Straight angle

• Obtuse angle

• Acute angle

Tags

CCSS.4.G.A.1

What is the classification of an angle that measures less than 90 degrees?

• Reflex angle

• Obtuse angle

• Acute angle

• Right angle

Tags

CCSS.4.G.A.1

If angle A is less than 90 degrees, what type of angle is it?

• Right angle

• Straight angle

• Acute angle

• Obtuse angle

Tags

CCSS.4.G.A.1