Final Exam Review Day 2

Find the sum of the interior angles of a 25-sided polygon.

• 3600°

• 3960°

• 4140°

• 4320°

If the sum of the measures of the interior angles of a polygon is 1,620°, how many sides does it have?

• 10

• 11

• 12

• 14

What is the measure of each interior angle of a regular 15-gon?

What is the measure of each exterior angle of a regular hexagon?

• 72°

• 60°

• 45°

• 90°

If an interior angle of a regular polygon measures 140°, how many sides does it have?

• 7

• 9

• 10

• 12

If an exterior angle of a regular polygon measures 15°, how many sides does it have?

• 24

• 12

• 18

• 30

Find the value of x.

Find the value of x.

• 6

• 8

• 10

• 12

If CE = 6x - 1 and EB = 2x + 11, find CB. (Show your work.)

• CB = 22

• CB = 28

• CB = 34

• CB = 40

Tags

CCSS.HSG.CO.C.11

If m∠ACD = (7x - 12)° and m∠BDC = (10x + 5)°, find x. (Show your work.)

• x = 7

• x = 9

• x = 11

• x = 13

Tags

CCSS.HSG.CO.C.11