[GEOMETRY] Polygons Flashcards
The formula to find the sum of the interior angles of a polygon is:
(n-2)x180
The formula to find each exterior angle is:
360/n
The sum of the exterior and interior angles add up to:
180
A polygon is regular if all the ___ and ___ are ___
Sides, angles, congruent
A polygon is ___ if any part of a diagonal contains points outside of the polygon
Concave
A polygon is ___ if no parts of a diagonal contains points outside of the polygon
Convex
Regular polygons are always ___
Convex
The sum of the angle measures of the polygon equals the sum of the angle measures of all of the ___
Triangles
The formula to find the measure of each interior angle is:
I=S/N (sum divided by the number of sides)
The sum of all of the exterior angles is
360
An equilateral triangle is a triangle with ___ congruent sides
3
An isosceles triangle is a triangle with ___ congruent sides
2
A scalene triangle is a triangle with ___ congruent sides
ZERO