Name this polygon by the number of sides.
Nonagon
How many interior angles does a polygon with 143 sides have?
143
What is the sum of exterior angles for any polygon?
3600
Give 3 reasons why this quadrilateral is a parallelogram.
Both pairs of opposite sides are congruent.
Both pairs of opposite angles are congruent.
Consecutive angles are supplementary.
Find the value of the ? in the rhombus below.
680
Concave or convex?
Concave
What is the formula for the sum of interior angles for a polygon with n sides?
(n-2)*180
What is the sum of the exterior angle measures of a irregular heptagon?
3600
Find the value of k in this parallelogram.
k=2
Find the length of ON in this rhombus.
ON = 19
Regular or irregular?
Irregular
What is the sum of interior angles of a 14-gon?
2,1600
What is the measure of one exterior angle of a regular hexagon?
600
Find the measure of angle B in the following parallelogram.
500
Find AE in the rectangle.
AE = 26
What are the two qualities of a regular polygon?
All sides are congruent.
All angles are congruent.
What is the measure of one interior angle of a regular 23-gon?
Round to the nearest tenths place.
164.30
8
SRQP is a parallelogram. Find x.
x = 60
A square holds all the properties of what two other quadrilaterals?
Rhombuses & Rectangles
Name the polygon by # of sides, concave/convex, and regular/irregular,
Irregular, concave, pentagon.
If a regular polygon has an interior angle measure of 1400, how many sides does it have?
9
What is the measure of one exterior angle of a regular polygon in which the sum of interior angles is 18000?
300
Find x and y in the following parallelogram.
x = 10
y = 13
How many lines of symmetry does a square have?
Four.