polygons Flashcards
what is a regular polygon?
a shape that has all congruent sides and angles.
sum of exterior angles of a polygon is..
always 360 degrees
the sum of interior angles of a triangle is…
180 degrees
the sum of exterior angles of a triangle is…
360 degrees
a triangle has how many sides; triangles?
3;1
total degrees of a triangle is…
180 degrees
a quadrilateral has how many sides; triangles?
4;2
total degrees of a quadrilateral is…
360 degrees
a pentagon has how many sides; triangles?
5;3
total degrees of a pentagon is…
540 degrees
a hexagon has how many sides; triangles?
6;4
total degrees of a hexagon is…
720 degrees
a heptagon has how many sides; triangles?
7;5
total degrees of a heptagon is…
900 degrees
an octagon has how many sides; triangles?
8;6
total degrees of an octagon is…
1080 degrees
a nonagon has how many sides; triangles?
9;7
total degrees of an nonagon is…
1260 degrees
a decagon has how many sides; triangles?
10;8
total degrees of an decagon is…
1440 degrees
n-gon is..
n-2x180
