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Lesson 2

Polygons

Practice

Describe each shape. Determine the number of sides and angles. Then classify each shape.

1. sides 2. sides

angles angles

This is a(n) . This is a(n) .

3. 7 Identify Structure Classify the polygons that are used to create the figure s hown.

Homework Helper

The front of the bird house shown has the shape of a polygon. Describe and classify the polygon.

The polygon has 5 sides and 5 angles.

It is a pentagon.

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triangle

hexagon

quadrilaterals

6 3

6 3

hexagon triangle

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Test Practice 10. Which of the following figures is a hexagon?

A B C D

Problem Solving

4. What is another name for a square, other than polygon?

5. 5 Use Math Tools Draw and label the polygon you would get when you fold the hexagon shown, in half along the dotted line.

6. Is the figure shown to the right a polygon? Explain.

Vocabulary Check

Choose the correct word to complete each sentence.

hexagon polygon quadrilateral

7. A is a closed two-dimensional figure formed of three or more straight sides that do not cross each other.

8. A is a polygon with 6 sides and 6 angles.

9. A is a polygon with 4 sides and 4 angles.

Polygons help me see!

quadrilateral

No; Sample answer: polygons only have

straight lines.

quadrilateral

hexagon

quadrilateral

polygon

844�Need more practice? Download Extra Practice at connectED.mcgraw-hill.com

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Vocab

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