Interior Angles
The sum of the interior angles of a triangle is...
180
The sum of the exterior angles on any polygon is...
360
Given the number of sides of a polygon, what is the equation for finding the exterior angle?
360/n
Parallelogram
In a trapezoid, AB is a base, DC is a base and EF is the midsegment. Find EF if AB = 13 and DC = 29
EF = 21
The formula for the sum of the interior angles of a polygon with n sides is...
S = (n - 2)*180
The measure of the exterior angles of a regular hexagon is...
60 degrees
Find one interior angle of a regular hexagon.
Which quadrilaterals always have diagonals that are congruent?
In an isosceles trapezoid - base angles are congruent or supplementary?
Congruent
1260 degrees
How many sides does a regular polygon have with an exterior angle of 10 degrees?
36 sides
A polygon has an exterior angle of 8 degrees. How many sides does it have?
45 sides
Which quadrilaterals always have diagonals that bisect opposite angles?
Rhombus & Square
In a trapezoid, AB is a base, DC is a base and EF is the midsegment. Find AB if EF = 15 and DC =24
AB = 6
The sum of the interior angles of a polygon with 17 sides is...
2700
The measure of an exterior angle of a regular quadrilateral is...
90 degrees
The sum of interior angles of a polygon is 3600. What is the measure of one exterior angle? (Round to the nearest tenth if needed)
16.4
I'm thinking of a regular quadrilateral. Which quadrilateral would that be?
Square
In a trapezoid, AB is a base, DC is a base and EF is the midsegment. Find DC if AB = 17 and EF = 29
DC = 41
The sum of the interior angles of a polygon with 1000 sides is...
179640 degrees
A regular polygon with an interior angle of 165 degrees has how many sides?
24 sides
An exterior angle measures 20 degrees. What is the sum of interior angles?
2880
True or false: A rhombus always has diagonals that are perpendicular and congruent.
FALSE! Only diagonals are perpendicular
In a trapezoid, AB is a base, DC is a base and EF is the midsegment. AB = 16, DC =40 and EF = 4x - 8. Solve for x.
x = 9