Geometry: Measurement of Angles (Level 1 of 9)

This video tutorial covers the basics of angles, including how to name them using different methods such as vertex points, Greek letters, and numbers. It explains the concepts of interior and exterior regions of angles and how to measure angles using a protractor. The video also discusses the unit of degrees, how a circle is divided into 360 degrees, and how to use a protractor to measure angles accurately. The tutorial concludes with examples of measuring angles and understanding the absolute difference in measurements.

What is the common point where two rays meet to form an angle called?

• Base

• Edge

• Vertex

• Side

Which of the following is NOT a way to name an angle?

• Using a single number

• Using the vertex

• Using a color

• Using Greek letters

What is the region called that is outside the angle?

• Exterior

• Boundary

• Interior

• Perimeter

How many degrees are there in a complete circle?

• 360

• 270

• 90

• 180

What is the purpose of a protractor?

• To measure line segments

• To measure angles

• To draw circles

• To calculate area

When measuring angles counterclockwise, which numbers on the protractor are typically used?

• Neither

• Outer numbers

• Inner numbers

• Both inner and outer numbers

How is the measurement of an angle typically denoted?

• With a capital M

• With a lowercase m

• With a number only

• With a degree symbol only