Interior Angles of Polygons

Find the measure of angle x

• 114
• 134
• 110
• 720

Find the measure of angle x

• 68
• 98
• 58
• 108

What is the sum of interior angles for a 15-gon?

• 2340
• 6704
• 360
• 2440

Find the measure of all the missing angles 

• y=45, x=45
• y=60, x=75
• y=90, x=32
• y=55 x=34

Tags

CCSS.8.G.A.5

What is the formula used to find the sum of interior angles in a polygon?

• 180(n-2)/2
• 180(n-n)
• 180(n-5)
• 180(n-2)

What is the measure of ∠X in this pentagon?

• 115
• 125
• 124
• 100

What is the measure of ∠X in this pentagon?

• 115
• 125
• 124
• 100

What is the sum of exterior angles for a decagon?

• 180°
• 360°
• 1440°
• 1800°

What is the measure of x in this hexagon?

• 160
• 120
• 113
• 110

How many angles does a dodecagon have?

• 12
• 10
• 15
• 20