Right Angles

1. Study the marked angles on the objects below.

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Each of the marked angles is a right angle.

2. Which of the angles below is smaller than a right angle?
Which one is greater than a right angle?
Which one is a right angle?

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Let's use a ruler to check for right angles.

3. How many right angles are there in each figure below?

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Figure A:
Figure A has 1 right angle.


Figure B:
Figure B has 4 right angles.


Figure C:
Figure C has 2 right angles.