Polygon Interior Angles
The sum of the measures of the interior angles of a pentagon
What is 540 degrees?
The sum of the measures of the exterior Angles of any polygon
What is 360 degrees?
In a parallelogram, this word describes both pairs of opposite angles.
What is congruent?
The measure of any angle in this triangle is 60 degrees.
What is an equilateral triangle?
Two angles are this if their measures add to 180 degrees.
What is supplementary?
The sum of the measures of the interior angles of this polygon is 1260.
What is a nonagon?
The measure of one exterior angle of this regular polygon is 60 degrees.
What is a Hexagon?
These line segments inside a parallelogram bisect each other.
What are diagonals?
A triangle with two congruent base angles.
What is isosceles?
A linear pair of angles (draw an example).
Will vary.
The measure of an interior angle of a regular hexagon
What is 120 degrees?
The measure of an exterior angle of this polygon is 24 degrees.
What is a 15gon?
We know a parallelogram is also this shape if just one of the angles in a rectangle measures 90 degrees.
What is a rectangle?
A triangle in which all angles and all sides are different measures.
What is scalene?
The measure of an exterior angle of this regular polygon is 18 degrees.
What is a 20-gon?
The sum of the measures of 7 the interior angles of an octagon is 980 degrees. What is the measure of the eighth angle?
What is 100 degrees?
The measure of an exterior angle of a regular 18-gon.
What is 20 degrees?
A diagonal inside a parallelogram creates a pair of these
What are congruent triangles?
The four postulates for proving congruence between two right triangles.
What are HL, HA, LL, LA
Sum if the measures of any pair of Consecutive angles of a parallelogram
What is 180 degrees?
The measure of one interior angle of a regular 80-gon.
What is 4.5 degrees?
This polygons interior and exterior angle measures have the same sum.
What is a quadrilateral?
A parallelogram with four congruent sides and four congruent angles.
What is a square?
The range of values for the length of the third side of a triangle with side lengths 4 and 6.
What is 2<x<10?
The converse of the phrase: if the measures of a polygon's interior angles have a sum of 360 degrees, the the polygon is a quadrilateral.
If a polygon is a quadrilateral, the sum of the measures of its interior angles is 360.