Measuring Angles

Read the measurement shown

• 155°

• 145°

• 45°

• 35°

Name this angle

• Acute angle

• Obtuse angle

• Right-angle

• Angle on a straight line

Read the measurement for ∠AOB

• 58°

• 62°

• 122°

• 138°

TRUE OR FALSE? ∠KOP is 80°

• TRUE

• FALSE

Read the measurement for ∠ROS

• 51°

• 69°

• 129°

• 131°

Which diagram shows 95°?

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• 
• 
• 

TRUE OR FALSE? The blue straight line equals to 180°

• TRUE

• FALSE

Do you find it easy or difficult to use a protractor to measure angles?