Geometry Unit 6 Review

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

• 180
• 360
• (n-2)180
• n(n-3)/2

What is the sum of interior angles of a pentagon?

• 360
• 540
• 180
• 760

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

• 4500
• 360
• 180
• 1500

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

• 135
• 180
• 145
• 190

Find the value of X

• 112°
• 116°
• 90°
• 244°

Solve for x

• 45
• 12
• 90
• 2

What is the sum of the exterior angles of an octagon?

• 240
• 360
• 180
• 1080

The diagonals of a parallelogram always ... 

• are congruent
• are perpendicular
• bisect each other
• are parallel

In a parallelogram, opposite angles are ________.

• congruent
• supplementary
• consecutive
• parallel

Which is NOT a property of a parallelogram?

• Diagonals bisect each other
• Diagonals are congruent
• Both pairs of opposite sides are parallel
• Both pairs of opposite angles are congruent