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

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)

The 3rd grade students of Mrs. Robert's class are playing duck-duck-goose outside for field day. Each student is sitting 157.7° apart. How many students from Mrs. Robert's class are participating in the duck-duck-goose event? Round to the nearest whole number.

• 15
• 16
• 17
• 18

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 an interior angle of a regular dodecagon?

• 150
• 30
• 120
• 180