CH. 7 NOTES

Question 1

Exterior and interior angles make

Answer 1

Linear pairs aka 180

Question 2

Convex polygon

Answer 2

Interior angles are less than 180

Question 3

Concave polygon

Answer 3

At least one interior angle is greater than 180

Question 4

Regular polygon

Answer 4

All angles and sides are congruent

Question 5

You can find the number of triangles inside by

Answer 5

Putting dot in middle and seeing how many triangles were in the shape

Question 6

Polygon interior angles thereom

Answer 6

The sum of the measure’s of the interior angles of a convex n - gon is
- interior angle measures + x = (n-2)180= answer ( sum of interior angles(
- n = sides

Question 7

Polygon exterior angles thereom

Answer 7

The sum of the measure’s of the exterior angles of a convex polygon, are angle at each vertex is 360
Angle measures + x = 360

Question 8

Given a regular pentagon, what is the value of one exterior angle

Answer 8

Sides: 5
Exterior: 360
360/5 = 72

Question 9

Rectangle diagonals thereom

Answer 9

A parallelogram is a rectangle if and only if it’s diagonals are congruent