Polygons, Angles and Triangles

What is a polygon?

• A closed plane figure made up of line segments
• An open plane figure made up of line segments
• A closed plane figure made up of rays
• An open plane figure made up of rays

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

What is a vertex?

• The point where two waves meet
• The point where two lines meet
• The point where two sides meet
• The point where two segments meet

Why is a Triangle called Equilateral?

• It has two sides that match
• It has all 3 sides that match
• It has no sides that match
• It has four sides that match

Tags

CCSS.2.G.A.1

Why is a Triangle called Isosceles?

• It has two sides that match
• It has three sides that match
• It has no sides that match
• It has four sides that match

Tags

CCSS.2.G.A.1

Why is a Triangle called Scalene?

• It has two sides that match
• It has three sides that match
• It has no sides that match
• It has four sides that match

Tags

CCSS.4.G.A.2

Why is a Triangle called a Right Triangle?

• It has 3 right angles
• It has 2 right angles
• It has 1 right angle
• It has 0 right angles

Tags

CCSS.4.G.A.2

Why is a Triangle called an Obtuse Triangle?

• It has 0 obtuse angles
• It has 1 obtuse angle
• It has 2 obtuse angles
• It has 3 obtuse angles

Tags

CCSS.4.G.A.2

Which of these figures are considered polygons?

• a, b, c, d
• b, d, e, f
• a, b, c
• a, e, f

5 sided shape

• Hexagon
• Octagon
• Pentagon
• Quadrilateral

Tags

CCSS.2.G.A.1

6 sided shape

• Octagon
• Hexagon
• Heptagon
• Decagon

Tags

CCSS.2.G.A.1