INTERIOR ANGLES OF A POLYGON

1. It is an angle inside a polygon

found at every vertex of the polygon

• Acute Angle

• Interior Angle

• Exterior Angle

• Right Angle

2. For any 3-sided polygon (triangle), what is the sum of the interior angles?

• 180 degrees

• 360 degrees

• 3 degrees

• 60 degrees

3. If a polygon has 18 sides, how many triangles can be formed using only one vertex?

• 16

• 17

• 19

• 20

4. If 100 triangles can be formed by drawing a diagonal from one vertex of a polygon, how many sides does it have?

• 100

• 101

• 102

• 104

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

• 100

• 300

• 600

• 900

6. Polygon comes from two greek words, poly and gon which means ______.

• many sides

• two sides

• many angles

• two angles

7. What is the name of a polygon whose sum of interior angles is 360 degrees?

• Triangle

• Quadrilateral

• Pentagon

• Hexagon

8. The formula for the sum of interior angles is _______.

• S= (n+2) x 180

• S= (nx2) + 180

• S= (n-2) + 180

• S= (n-2) x 180

9. I have decided to make a wall decoration whose sum of interior angles is 1 260 degrees. What polygon would I choose?

• Nonagon

• Octagon

• Decagon

• Heptagon

10. what is another name for 100-gon?

• hexadecagon

• icosagon

• hectogon

• undecagon