Quiz Review 8.1-8.2

What is the formula for the sum of interior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

Find the sum of interior angles in a heptagon

• 900
• 720
• 540
• 180

What is the formula for one interior angle in a regular polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

What is the measure of each interior angle of a regular octagon?

• 135

• 180

• 145

• 190

If the sum of the interior angles of a polygon equals 900°, how many sides does the polygon have? 

• 7
• 9
• 10
• 12

What is the formula for the sum of exterior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

What is the sum of the exterior angles of a decagon

• 1440
• 360
• 540
• 720

What is the formula for one exterior angle in a regular polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

An exterior angle of a regular polygon
measures 36°. How many sides does
the polygon have? 

• 10
• 5
• 14
• 9

What is the value of x?

• 26.25
• 38.75
• 24
• 25.125