4G1 Understanding Angles and Measurement

What is an angle?

• A straight line

• A shape formed by two rays sharing a common endpoint

• A circle

• A square

Which of the following is the common endpoint of two rays that form an angle called?

• Vertex

• Side

• Arc

• Center

Which could be the measurement of an acute angle?

• 0

• 35

• 180

• 90

In a triangle, how many total degrees are there?

• 100%

• 180 degrees

• it varies

• 360 degrees

What is a "one-degree angle"?

• An angle that turns through 1/360 of a circle

• An angle that turns through 1/180 of a circle

• An angle that turns through 1/90 of a circle

• An angle that turns through 1/45 of a circle

If an angle turns through 45 one-degree angles, what is its measure?

• 45 degrees

• 90 degrees

• 180 degrees

• 360 degrees

What tool is commonly used to measure angles in degrees?

• Ruler

• Protractor

• Compass

• Calculator

_What is the measure of the following angle?  

• 21 degrees.

• 34 degrees.

• 70 degrees.

• 172 degrees.

_What is the measure of the angle?

• 110 degrees.

• 140 degrees.

• 150 degrees.

• 170 degrees.

Find the measure of the indicated angle.

• 26

• 36

• 85

• 144