Show:
Interior Angles
Exterior Angles
More Angles of Polygons
Quad Properties
Trapezoids
100

The sum of the interior angles of a triangle is...

180

100

The sum of the exterior angles on any polygon is...

360

100

Given the number of sides of a polygon, what is the equation for finding the exterior angle?

360/n

100
Opposite sides are parallel - you have no other information. What shape am I?

Parallelogram

100

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

200

The formula for the sum of the interior angles of a polygon with n sides is...

S = (n - 2)*180

200

The measure of the exterior angles of a regular hexagon is...

60 degrees

200

Find one interior angle of a regular hexagon. 

120 degrees
200

Which quadrilaterals always have diagonals that are congruent? 

Parallelograms, Rectangles, Rhombuses, Squares
200

In an isosceles trapezoid - base angles are congruent or supplementary? 

Congruent

300
The sum of the interior angles of a nonagon is...

1260 degrees

300

How many sides does a regular polygon have with an exterior angle of 10 degrees? 

36 sides

300

A polygon has an exterior angle of 8 degrees. How many sides does it have?

45 sides

300

Which quadrilaterals always have diagonals that bisect opposite angles? 

Rhombus & Square

300

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

400

The sum of the interior angles of a polygon with 17 sides is...

2700

400

The measure of an exterior angle of a regular quadrilateral is...

90 degrees

400

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

400

I'm thinking of a regular quadrilateral. Which quadrilateral would that be? 

Square

400

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

500

The sum of the interior angles of a polygon with 1000 sides is...

179640 degrees

500

A regular polygon with an interior angle of 165 degrees has how many sides? 

24 sides

500

An exterior angle measures 20 degrees. What is the sum of interior angles?

2880

500

True or false: A rhombus always has diagonals that are perpendicular and congruent. 

FALSE! Only diagonals are perpendicular

500

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