Untitled Presentation

Multiple Choice

Why is it important to learn about angle measure and plane figures in mathematics?

• Because it helps us understand shapes and their properties

• Because it is useful only for advanced mathematics

• Because it is not related to real life

• Because it is only needed for exams

Open Ended

How do you think practicing fluency, solving application problems, and developing concepts can help you understand mathematics better?

Multiple Choice

Which two numbers can be added together to break apart 90 in the diagram shown?

• 45 and 45

• 60 and 30

• 50 and 40

• 70 and 20

Multiple Choice

Which two numbers can be added together to break apart 180 in the diagram shown?

• 90 and 90

• 120 and 60

• 100 and 80

• 150 and 30

Open Ended

Explain how breaking apart numbers like 90, 180, and 360 can help you understand angle measures.

Multiple Choice

Which two numbers can be added together to break apart 360 in the diagram shown?

• 180 and 180

• 200 and 160

• 120 and 240

• 300 and 60

Multiple Select

Which of the following is the correct measure for angle GIH?

• 40°

• 90°

• 140°

• 180°

Multiple Choice

Which of the following is the correct measure of angle HIJ?

• 92°

• 88°

• 105°

• 50°

Multiple Choice

Which of the following is the correct measure of angle FEG?

• 75°

• 105°

• 130°

• 92°

Multiple Choice

Which of the following is the correct measure of angle ABC?

• 130°

• 50°

• 75°

• 88°

Open Ended

Predict the measure of ∠XYZ using your right angle template. Then, find the actual measure of ∠XYZ using a circular protractor and 180° protractor. Compare with your partner when you are finished.

Multiple Choice

Which of the following angles is an acute angle?

• ∠ABC

• ∠DEF

• ∠QRS

• ∠HIJ

Open Ended

Explain how you would measure the angle formed at point R using a protractor.

Multiple Choice

What is the name of the angle formed by the rays QR and RS at point R?

• Angle QRS

• Angle QSR

• Angle QRSR

• Angle QSRQ

Open Ended

Compare the angles 5° and 175°. How are they different in terms of their classification and appearance?

Multiple Select

Which of the following angles are obtuse?

• 30°

• 65°

• 115°

• 135°

Multiple Choice

Which angle from the problem set is closest to a straight angle?

• 65°

• 115°

• 175°

• 132°

Open Ended

Explain how you would use a 180° protractor to measure an angle greater than 180°.

Open Ended

Why is it important to be precise when drawing angles? Tell your partner how you can be precise when drawing angles.

Multiple Select

Select all the angles that are greater than 90° from the following: 30°, 65°, 115°, 135°, 5°, 175°, 27°, 117°, 45°, 132°

• 115°

• 135°

• 117°

• 132°

Multiple Choice

Which of the following is true about measuring angles with different size protractors?

• The measurement changes with the size of the protractor.

• The measurement stays the same regardless of protractor size.

• The measurement is always larger with a bigger protractor.

• The measurement is always smaller with a smaller protractor.

Open Ended

Reflecting on today's lesson about angle measure and plane figures, what is one concept you found most interesting or would like to learn more about?