Angle Calculations Worksheet

Practice calculating and identifying different types of angles with this Grade 4 math worksheet.

Grade 4 Math GeometryAngle Calculations

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Includes

CustomFill in the Blanks2 Short AnswerMultiple Choice

Standards

CCSS.MATH.CONTENT.4.MD.C.5CCSS.MATH.CONTENT.4.MD.C.6CCSS.MATH.CONTENT.4.MD.C.7

Topics

mathgeometryanglesgrade 4

7 sections · Free to use · Printable

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Angle Calculations

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Read each question carefully and answer to the best of your ability. Use the protractor provided to measure angles as needed.

Identify each angle as acute, right, or obtuse.

Type of angle:

1. An angle that measures exactly 90 degrees is called a angle.

2. An angle that measures less than 90 degrees is called an angle.

3. An angle that measures more than 90 degrees but less than 180 degrees is called an angle.

4. A straight angle measures exactly degrees.

Use the protractor to measure the following angles and write down their measurements.

Measurement: degrees

1. If a right angle is divided into two smaller angles, and one angle measures 35 degrees, what is the measure of the other angle?

45 degrees

55 degrees

65 degrees

90 degrees

2. What is the sum of angles in a straight line?

90 degrees

180 degrees

270 degrees

360 degrees

1. An angle measures 120 degrees. It is divided into two smaller angles. If one smaller angle is 70 degrees, what is the measure of the other smaller angle?

2. Draw an obtuse angle and label its vertex and arms.