Angle Measurement and Properties

The video tutorial focuses on estimating angle measurements, particularly identifying angles less than 90 degrees. It explains the concept of right angles, which are 90 degrees, and how to estimate angles greater or less than 45 degrees. The tutorial provides multiple examples and practice problems to help learners understand and apply these concepts effectively.

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

• It is an obtuse angle.

• It is a straight angle.

• It is a right angle.

• It is an acute angle.

If an angle is greater than 45 degrees but less than 90 degrees, which of the following could it be?

• 5 degrees

• 60 degrees

• 30 degrees

• 15 degrees

Which angle is definitely less than 45 degrees?

• 60 degrees

• 45 degrees

• 90 degrees

• 15 degrees

Which angle is not greater than 45 degrees?

• 15 degrees

• 90 degrees

• 75 degrees

• 60 degrees

What is the measure of a right angle?

• 45 degrees

• 60 degrees

• 90 degrees

• 15 degrees

How can you identify a right angle in a diagram?

• It has a small circle.

• It is marked with a triangle.

• It has a square in the corner.

• It is shaded.

What is the measure of an angle that is exactly half of a right angle?

• 15 degrees

• 60 degrees

• 30 degrees

• 45 degrees

If an angle is less than 45 degrees, which of the following is a possible measure?

• 45 degrees

• 90 degrees

• 60 degrees

• 5 degrees

What is the measure of an angle that is one-third of a right angle?

• 15 degrees

• 30 degrees

• 45 degrees

• 60 degrees

Which of the following angles is the smallest?

• 45 degrees

• 30 degrees

• 15 degrees

• 5 degrees