Interior and exterior angles in a polygon. classifying Formula

What is the formula used to calculate the sum of the measures of the interior angles in any polygon?

• 360

• (n+2)180

• (n - 2)180

• 180n

What is the name of a polygon with 10 sides.

• Dodecagon

• Decagon

• Octagon

• Heptagon

What is the name of a polygon with 6 sides.

• Triangle

• Nonagon

• Quadrilateral

• Hexagon

What is the name of a polygon with 5 sides.

• Pentagon

• Quadrilateral

• Nonagon

• Heptagon

What is the SUM of the EXTERIOR angles of a hexagon?

• 360
• 120
• 60
• 720

What is the sum of the angle measures in a triangle?

• 60

• 90

• 180

• 120

How many sides does a quadrilateral have?

• 3

• 4

• 5

• 6

Find the measure of the missing angle.

• 145
• 55
• 35
• 45

Find the measure of the missing angle.

• 140°
• 21°
• 105°
• 25°

A triangle's angles add up to...

• 90 Degrees
• 180 Degrees
• 360 Degrees
• OVER 9000 Degrees