Understanding Basic Angle Types

Which of the following is NOT a type of angle introduced in the video?

• Obtuse angle

• Right angle

• Acute angle

• Reflex angle

What is a characteristic of an acute angle?

• It is larger than a right angle.

• It is smaller than a right angle.

• It is exactly 90 degrees.

• It is formed by parallel lines.

How is a right angle typically represented?

• With a small circle

• With a square

• With a half-box

• With a triangle

What is the measure of a right angle in degrees?

• 45 degrees

• 60 degrees

• 120 degrees

• 90 degrees

Which angle type is narrower than a right angle?

• Reflex angle

• Straight angle

• Obtuse angle

• Acute angle

What is true about an obtuse angle?

• It is less than 90 degrees.

• It is exactly 90 degrees.

• It is greater than 90 degrees.

• It is formed by parallel lines.

Which angle type is described as 'not very sharp'?

• Straight angle

• Obtuse angle

• Right angle

• Acute angle

What is the everyday meaning of 'acute' as used in the context of angles?

• Dull or blunt

• Very sharp or sensitive

• Flat or even

• Wide or open

How does an obtuse angle compare to a right angle?

• It is larger than a right angle.

• It is equal to a right angle.

• It is formed by parallel lines.

• It is smaller than a right angle.

Which angle type requires more rotation to align one ray with another?

• Obtuse angle

• Right angle

• Acute angle

• Straight angle