Geometry Lesson 1.4 Do-Now

Match each polygon with its number of sides.

• 8

• Decagon

• 10

• Hexagon

• 4

• Octagon

• 6

• Quadrilateral

• 11

• 11-gon

Tags

CCSS.2.G.A.1

Match each polygon with its number of sides.

• 5

• Nonagon

• 3

• Heptagon

• 12

• Pentagon

• 7

• Dodecagon

• 9

• Triangle

Tags

CCSS.2.G.A.1

Match each polygon with its area formula.

• Square

• Rectangle

• Triangle

• Circle

Tags

CCSS.6.G.A.1

Classify each polygon as convex or concave.

Groups:

(a) Convex

,

(b) Concave

• 
• 
• 
• 

Tags

CCSS.2.G.A.1

• 14 square units

• 24 square units

• 30 square units

• 48 square units

Tags

CCSS.HSG.GPE.B.7