Geometry in Unit 7

What is the sum of interior angles of a pentagon?

• 360
• 540
• 180
• 760

What is the sum of exterior angles of a pentagon?

• 180
• 360
• 540
• 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

What is the measure of each interior angle of a regular 20-gon?

• 90
• 146
• 162
• 122

Five angles of a hexagon measure 119°, 129°, 104°, 149°, and 95°.  What is the measure of the sixth angle?

• 89
• 105
• 720
• 124

What is the sum of the measure of the interior angles of an octagon?

• 180
• 960
• 1080
• 1280

The sum of the interior angles of a polygon is 1620°.  How many sides does the polygon have?

• 8
• 11
• 3
• 16

What is the sum of the measure of the exterior angles of a nonagon?

• 360
• 180
• 940
• 1560

What is the measure of each exterior angle of a 20-gon?

• 14°
• 15°
• 17°
• 18°