Geometry: Measurement of Angles (Level 4 of 9)

This video tutorial covers the basics of angle measurement and classification. It begins with identifying congruent angles using arc marks on triangles. The tutorial then explains how to measure and classify angles as acute, right, obtuse, or straight using a protractor. It also covers identifying pairs of congruent angles and converting angle measurements between degrees and minutes. The video concludes with examples of converting fractional degrees to minutes and vice versa.

Which two angles are congruent based on matching arc marks?

• Angle A and Angle C

• Angle A and Angle S

• Angle R and Angle C

• Angle R and Angle S

What is the measure of angle BOC and how is it classified?

• 180 degrees, straight angle

• 90 degrees, right angle

• 140 degrees, obtuse angle

• 70 degrees, acute angle

How would you classify an angle measuring 140 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Which pair of angles are congruent acute angles?

• Angle HOB and Angle GOA

• Angle GOC and Angle HOA

• Angle GOH and Angle BOA

• Angle HOC and Angle COA

Identify a pair of congruent right angles.

• Angle GOH and Angle BOA

• Angle HOC and Angle COA

• Angle HOB and Angle GOA

• Angle GOC and Angle HOA

Convert 41.4 degrees to degrees and minutes.

• 41 degrees, 40 minutes

• 41 degrees, 24 minutes

• 41 degrees, 4 minutes

• 41 degrees, 14 minutes

How would you express 60 degrees 45 minutes in decimal degrees?

• 60.5 degrees

• 60.45 degrees

• 60.75 degrees

• 60.25 degrees