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1-4.

Decide what the shapes below have in common. Write your answer in a complete sentence. Then draw two more shapes that belong to the same set.

Note: Many answers are possible.

Look for something true about all the shapes.

Consider things like:

- How many sides do they have?
- What types of angles do they all have?
- What name could describe all of them?

They all have at least one obtuse angle; they are all polygons.
Now, draw two more shapes that would belong to the set of shapes above.