Lesson 1.6 Classify Polygons

Find the side length of the regular polygon shown in the diagram. The sides are labeled as (8x) in. and (5x + 6) in. What is the side length of the regular pentagon? A. 16 inches B. 12 inches C. 20 inches D. 10 inches

• 16

• 12

• 20

• 10

Tags

CCSS.HSG.CO.C.10

Name each polygon by its number of sides. Classify the polygon as convex or concave and as regular or irregular.

• Hexagon; convex; regular

• Pentagon; concave; irregular

• Heptagon; convex; irregular

• Octagon; concave; regular

Tags

CCSS.2.G.A.1

Name each polygon by its number of sides. Classify the polygon as convex or concave and as regular or irregular.

• Quadrilateral; concave; irregular

• Quadrilateral; convex; regular

• Pentagon; concave; regular

• Triangle; convex; irregular

Tags

CCSS.2.G.A.1

Which of the following best describes a convex irregular quadrilateral?

• A four-sided polygon with all angles less than 180° and sides of different lengths

• A four-sided polygon with all sides equal and all angles equal

• A four-sided polygon with one angle greater than 180°

• A polygon with three sides and all angles less than 180°

Tags

CCSS.5.G.B.4

Which of the following is a regular hexagon?

• A polygon with six equal sides and six equal angles

• A polygon with five equal sides and five equal angles

• A polygon with six sides of different lengths

• A polygon with four equal sides and four equal angles

Tags

CCSS.2.G.A.1

Find the side length of the polygon. (Refer to the triangle shown in the diagram for question 5, with sides labeled (4x + 1) cm and (5x - 3) cm.)

• 17 cm.

• 12 cm.

• 21 cm.

• 9 cm.

Tags

CCSS.HSG.CO.C.11

Classify the polygon as convex or concave and as regular or irregular. 7. (Polygon with equal sides and angles, circle-like)

• Convex, regular

• Concave, regular

• Convex, irregular

• Concave, irregular

Tags

CCSS.2.G.A.1

Classify the polygon as convex or concave and as regular or irregular. 8. (Quadrilateral with two pairs of equal sides)

• Convex, irregular

• Concave, regular

• Convex, regular

• Concave, irregular

Tags

CCSS.2.G.A.1

Which of the following is a regular triangle?

• A triangle with all sides and angles equal

• A triangle with two equal sides

• A triangle with all angles different

• A triangle with one right angle

Tags

CCSS.4.G.A.2

Find the side length of each regular polygon. 14. (Hexagon diagram) (2x + 5) m, (4x - 5) m

• 15 m

• 10 m

• 20 m

• 25 m

Tags

CCSS.HSG.CO.C.10