S2: Chapter seven

Question 1

Interior

Answer 1

Inside angles

Question 2

Exterior:

Answer 2

Angles on the outside
- angles on the outside of the vertices of any polygon that makes a linear pair with the interior angles

Question 3

Convex polygon

Answer 3

Interior angles are less then 180

Question 4

Concave polygon

Answer 4

At least one interior angle is greater than 180

Question 5

Regular polygon

Answer 5

All angles and sides are congruent

Question 6

Polygon: sides - number of triangles inside (interior angle measures)

Answer 6

• triangle: 3-1 (180)
• quadrilateral: 4-2 (360)
• pentagon: 5-3 (540)
• hexagon: 6-4

Question 7

-Polygon:sides

Answer 7

-heptagon:7
- octagon: 8
-nonagon:9
-Decagon:10

Question 8

Thereom 7.1: polygon interior angles thereom

Answer 8

The sum of the measure’s of the interior angles of a convex n - gon is (n-2) x 180