Finding the measure of Angles with and without a protractor

Finding the measure of Angles with and without a

protractor

TEKS 4.7C Aligned to the STAAR test

Academic Vocabulary

? Angle: Two rays connected at a vertex, measured in angles

? Protractor: tool used to measure angles in degrees

? Acute angle: an angle less than 90

? Right angle: an angle exactly 90

? Obtuse angle: an angle greater than 90

? Straight angle: an angle exactly 180 or a straight line

Practice Using a Protractor

Write the angle's measurements inside the angle

Finding angles on a protractor where one

angle starts at 0

An angle is shown on this protractor. What is the measure of the angle to the nearest

degree?

An angle is shown on this protractor. What is the measure of the angle to the nearest

degree?

An angle is shown on this protractor. What is the measure of the angle to the nearest

degree?

An angle is shown on this protractor. What is the measure of the angle to the nearest

degree?

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