Math 7 1st Mid: Polygons 2

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

• 135 degrees

• 125 degrees

• 115 degrees

• 105 degrees

If a polygon has at least one interior angle greater than 180 degrees, how would you classify it?

• regular and convex

• irregular and convex

• regular and concave

• irregular and concave

In a regular polygon, how does the measure of each exterior angle relate to its adjacent interior angle?

• The exterior angle is always larger.

• The exterior angle is always smaller.

• The exterior and interior angles are equal.

• The sum of the exterior and interior angles is always 180 degrees.

How do you classify the polygon?

• regular and convex

• irregular and convex

• regular and concave

• irregular and concave

What is the measure of ∠DEF?

• 20 degrees

• 80 degrees

• 100 degrees

• 120 degrees

What is the sum of the measures of ∠ABC and ∠FAB?

• 120 degrees

• 240 degrees

• 360 degrees

• 720 degrees

If side AB = 25 in, how long is side EF?

• 5 in

• 15 in

• 25 in

• 35 in

What is the sum of the interior angles of a 27-gon.

• 2450 degrees

• 4500 degrees

• 5040 degrees

• 2540 degrees

Find the number of sides of a polygon given the sum of the interior angles equal to 1800°.

• 10 sides

• 12 sides

• 14 sides

• 16 sides

Find the number of sides of a polygon given the sum of the interior angles equal to 3240°.

• 10 sides

• 20 sides

• 30 sides

• 40 sides