Unit 5 Review

What is the equation to find the total sum of the interior angles of any polygon?

What is the measure of each interior angle of a Regular Polygon?

• S = (n-2)*180

• S = ((n-2)*180)/n

• S = (n-2)*360

• 360/n

A parallelogram is a square.

• Sometimes

• Always

• Never

What is the sum of the measures of the interior angles of an 11-gon?

• 1080 degrees

• 900 degrees

• 1620 degrees

• 1980 degrees

If this figure is a regular polygon, solve for x.

• 9

• 16

• 11

• 14

PQRS is a parallelogram. Find the measure of angle R.

• 51

• 56

• 136

• 124

ABCD is a parallelogram.

If AC = 8x - 14 and EC = 2x + 11, solve for x.

• 7

• 8.5

• 9

• 9.5

Polygon ABCD is a rectangle.

Find the measure of angle BCE.

• 90 degrees

• 71 degrees

• 63 degrees

• 57 degrees

This quadrilateral is a rhombus.

What is the measure of angle #2?

• 38

• 76

• 104

• 52

Which of the following quadrilaterals always have diagonals that are congruent? Check all that apply.

• Parallelograms

• Rectangles

• Rhombi

• Squares