Exercises: Recognizing Angles and Understanding Angle Measurement
Work through each section in order. When you compare angles, remember: angle size
depends on the amount of turning between the rays, not on how long the rays are drawn.
Recall / Warm-Up
These problems review skills from earlier grades that this lesson depends on.
What makes a ray different from a line segment?
A ray has one endpoint and extends forever in the other direction; a line segment has two endpoints and a fixed length.
A ray and a line segment are the same thing.
A ray has two endpoints; a line segment has none.
A ray is always shorter than a line segment.
A whole is divided into 12 equal parts. What fraction of the whole is 3 of those parts? Express your answer in simplest form.
Which object is most likely to have right angles (square corners)?
A book
A slice of pizza
A ball
A traffic cone
Fluency Practice
In the figure shown, which point is the vertex of the angle?
Point V
Point A
Point B
There is no vertex shown.
Two rays share endpoint M, with point N on one ray and point P on the other. Which is a correct three-letter name for this angle?
angle NMP
angle MNP
angle NPM
angle MPN
What fraction of a full circle is a 60-degree angle? Express your answer in simplest form.
How many one-degree angles make up a 45-degree angle?
A quarter turn is how many degrees?
Three-quarters of a full turn is how many degrees?
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