Geometry 22.5 Review #1

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

• 180(n-2)

• 90

• 180

• 360

How do you find the sum of the interior angles of a polygon?

• (n+2)180

• (n-2)180

• (n+2)360

• (n-2)360

What is the sum of the interior angles of a heptagon?

• 180

• 360

• 720

• 900

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

• 180

• 360

• 540

• 720

This figure is a traffic sign. It is a regular polygon. What is the value of x?

• 45

• 60

• 135

• 180

The sum of the interior measures of a convex polygon is 540°. How many sides does it have?

• 10

• 5

• 8

• 9

The measure of each interior angle of a regular polygon is 144°. How many sides does the polygon have?

• 12

• 9

• 8

• 10

The coordinates of A are (3, 3) and the coordinates of B are (-7, -3). What are the coordinates of the midpoint of segment AB? Enter your answer with a space after the comma, e.g. (x, y)

The coordinates of P are (4, 10) and the coordinates of Q are (-12, 18). What are the coordinates of the midpoint of segment PQ? Enter your answer with a space after the comma, e.g. (x, y)

Lines a and b are cut by a transversal. What value of x will show that line a is parallel to line b? Enter answer only, no "x ="