Interior and Exterior Polygon Angles

Front

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

Back

180°

Tags

CCSS.8.G.A.5

Front

What is the sum of the exterior angles of a polygon?

Back

360°

Front

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

Back

360/n

Front

How many sides does the regular polygon have if an interior angle is 140 degrees?

Back

9 sides

Front

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

Back

120°

Front

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

Back

(n-2)180° where n is the number of sides.

Front

What is the measure of each interior angle in a regular octagon (8 sides)?

Back

135°

Front

How do you calculate the number of sides of a regular polygon given one interior angle?

Back

Use the formula n = 360°/(180° - interior angle).

Front

What is the relationship between interior and exterior angles of a polygon?

Back

Interior angle + Exterior angle = 180°.

Front

What is the measure of each exterior angle in a regular pentagon (5 sides)?

Back

72°.