Show:
Polygons
Who am I?
Angles
Degrees
Possible sides of a Triangle
100
Many sides.
What is polygon?
100
The sum of my interior angles is 180 degrees.
What is a triangle?
100
Angles on the inside of the polygon.
What are interior angles?
100
The sum of the interior angles of a pentagon.
What is 540 degrees?
100

Can a triangle have sides of 2,2,5?

No because 2+2<5

200
The fewest sides needed to make a polygon.
What is three?
200
I have 9 sides and 9 angles.
What is a nonagon?
200
The sum of the interior angles of a quadrilateral.
What is 360 degrees?
200
The sum of the interior angles of a hexagon.
What is 720 degrees?
200

Can a triangle have sides 4,5,5?

Yes

300

 A polygon with three sides, length of 8,8, and 10 and angle measures of 50, 50, and 80 has what two special names?

Acute, isosceles triangle.

300
I have 7 sides and 7 angles.
What is a heptagon?
300
The formula for finding the sum of the interior angles of a polygon.
What is 180(n-2) ?
300
The measure of one interior angle of a regular octagon.
What is 135 degrees?
300

Can a triangle have sides 1,1,2?

No because 1+1=2

400

A quadrilateral with two pairs of parallel and equal opposite sides is called a what?

Parallelogram

400
I have 12 sides and 12 angles.
What is a dodecagon?
400
The sum of the exterior angles of any polygon.
What is 360 degrees?
400
The measure of one exterior angle of a regular decagon.
What is 36 degrees?
400

A triangle has side lengths 12, 15, and 21.   The angle across from which side length is the smallest angle?

Across from the 12 side length.

500
Regular polygon.
What is a polygon where all angles and sides are congruent?
500

I am a polygon with sum of exterior angles equal to 360.  Which polygon am I?

What is any polygon?

500
180(n-2)/n
What is the formula to find the measure of one interior angle of a regular polygon?
500
The measure of the exterior angle of an interior angle of 112 degrees.
What is 68 degrees?
500

A triangle has angles, 40 degrees, 50 degrees, and 90 degrees.  The side of this triangle that is across from which angle is the largest side?

Across from the 90 degree angle.