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Back to Exercise: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint

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.

Grade 4·23 problems·~30 min·Common Core Math - Grade 4·standard·4-md-c-5
Work through problems with immediate feedback
A

Recall / Warm-Up

These problems review skills from earlier grades that this lesson depends on.

1.

What makes a ray different from a line segment?

2.

A whole is divided into 12 equal parts. What fraction of the whole is 3 of those parts? Express your answer in simplest form.

3.

Which object is most likely to have right angles (square corners)?

B

Fluency Practice

1.

In the figure shown, which point is the vertex of the angle?

2.

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?

3.

What fraction of a full circle is a 60-degree angle? Express your answer in simplest form.

4.

How many one-degree angles make up a 45-degree angle?

5.

A quarter turn is how many degrees?

6.

Three-quarters of a full turn is how many degrees?

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