Geometry Interior Angles Exterior Angles Polygons Find X and Y on Parallelograms

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°
• 90°
• 120°
• 180°

Tags

CCSS.8.G.A.5

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°
• 80°
• 108°
• 120°

What is the measure of ONE interior angle in a regular triangle (3 sides)?

• 15°
• 30°
• 60°
• 90°

Find the angle Find the angle sum of the interior angles of the polygon. of the polygon.

• 720° 
• 900° 
• 1080° 
• 1260° 

Find the value of X.

• 90° 
• 98° 
• 100° 
• 115° 

Find the value of x

• 141
• 150
• 135
• 163

Solve for x

• 45
• 12
• 90
• 2

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

• 180(n−2)
• 180(n−2)÷n
• 360
• 360/n