Polygons Review

Is this a parallelogram? How do we know?

• yes,opposite sides are congruent

• no we can not prove it is a parallelogram

• yes, one pair of sides are congruent and parallel

• yes, opposite sides are parallel

• yes, diagonals bisect each other

State which method we can use to show that the quadrilateral is a parallelogram. 

• Both pairs of opposite angles are congruent.

• Both pairs of opposite sides are congruent.

• Both pairs of diagonals bisect each other.

• Both pairs of opposite sides are parallel. 

State which method we can use to show that the quadrilateral is a parallelogram.

• Both pairs of opposite angles are congruent.

• Both pairs of opposite sides are congruent.

• Both pairs of diagonals bisect each other.

• Both pairs of opposite sides are parallel.

Is the quadrilateral a parallelogram?

• Yes; one pair of opposite sides are parallel

• Yes; one pair of opposite sides are congruent

• Yes; opposite sides are parallel and congruent

• No; only one pair of sides are parallel

• No; only one pair of sides are congruent

Find the value of f.

• -5

• 15

• 5

• 20

Find the value of X.

• 100

• 120

• 125

• 130

The sum of the interior angles of a polygon is 3960°. How many sides does the polygon have?

• 12

• 24

• 25

• 13

Find the value of x that makes the quadrilateral a parallelogram.

• 29

• 42

• 78

• 11

What is the formula for the sum of the interior?

• S=360

• S=(n-2)180

• n=360/ext. angle

• 1 int. angle + 1 ext. angle=180

What is the sum of exterior angles of a pentagon?

• 180

• 360

• 540

• 760