Margarita Perez Texas Woman’s University

MATH 4313mago0789@yahoo.com

Geopardy

How to Play• Divide the class into three groups and have each group choose one person who will answer

questions on behalf of the whole group. • Have each group take out scratch paper, pencil and a calculator (optional)• Choose one group to start the game by choosing a category and an amount. • Click on the link to read the question. The group whose captain raises his/her hand first

gets a chance to answer, but they must wait for you to finish reading the question. If they ring before, they cannot answer that particular question.

• If the first group answers incorrectly, allow the other groups to try.• Answers must be given in the form of “who/what is…?” and 20 seconds are given to

answer each question.• Add money amount for correct answers, and deduct corresponding amount for incorrect

answers. • Keep score for each group on the board/overhead or any medium of choice. • Click on the pink back button to go back to the category board and have the team that last

answered a question correctly choose the next category. • Repeat above procedures until all questions have been answered for the regular round and

for double Geopardy. • After all categories have been played, show the final Geopardy topic. Have each group

decide how much of their winnings they want to wager and write it on a piece of paper . Once they all decide, give them 45 seconds to answer the question and write it down.

• Have each group reveal their answer and compute the final score. • Have some type of prize/reward for the winning team, i.e. pizza party, free homework

pass, etc.

Name that polygon

Angles It’s all in

the equation

Properties of all

polygons

100

200

100

300

1000

500

200

300 300

100

500

100

1000 1000

500

200

300

200

500

1000

This polygon has five sides

What is a pentagon?

This polygon has seven sides

What is a heptagon?

What is a regular octagon?

The shape of a standard stop sign

This is the name of the simplest

polygon

What is a triangle?

What is a dodecagon?

This polygon has twelve sides

This is the sum of the interior angles

of a triangle

What is 180⁰?

This is the sum of the interior angles of a quadrilateral

What is 360⁰?

The interior angle is always to

an exterior angle at that vertex

What is supplementary?

The sum of the interior angles of a

hexagon

What is 720⁰?

The sum of the exterior angles of

an n-gon

What is 360⁰?

This equation can be used to find the sum of the interior angles of an n-gon

What is 180⁰( n – 2 )?

The measure of one interior angle of a

regular n-gon can be found using this

equation

( n – 2 )180⁰ /n?

The measure of one exterior angle of a regular n-gon can be found using

this equation

What is 360⁰/n?

This equation can be used to find the central angle of a regular polygon

What is 360⁰/n?

This equation can be used to find the

number of diagonals in a

polygon What is ½ ( n - 3 )n?

Angles at each vertex on the

inside of a polygon

What are interior angles?

The angle on the outside of a polygon between a side and

the extended adjacent side

What are exterior angles?

Lines linking any two non-adjacent

vertices

What are diagonals?

The number of square units it

takes to completely fill a polygon

What is area?

The distance around a polygon

What is perimeter?

Double Geopardy

Types of polygons

Properties of regular polygons

Quadrilaterals Nonagons

200 200 200 200

400 400 400 400

600 600 600 600

1000 1000 1000 1000

2000 2000 2000 2000

A polygon with all equal sides and interior angles

What is a regular polygon?

Each side may be a different length,

each angle may be a different measure

What is an irregular polygon?

All interior angles are less than 180°, and all vertices ‘point

outwards’ away from the interior

What is a convex polygon?

One or more interior angles is greater than 180°. Some vertices

push 'inwards' towards the interior of the

polygon

What is a concave polygon?

A polygon where one or more sides cross back

over itself, not considered to be a real

polygon

What is a crossed polygon?

A line from the center to the

midpoint of a side

What is the apothem?

A line from the center to any

vertex of a regular polygon

What is the radius?

Largest circle that will fit inside a

regular polygon

What is an incircle?

The circle that passes through all the vertices of a regular polygon

What is a circumcircle?

Another name for the apothem

What is inraduis?

A quadrilateral that has two parallel

bases

What is a trapezoid?

The greatest number of obtuse

angles that a quadrilateral can

have

What is two?

This quadrilateral is equilateral but not

equiangular

What is a rhombus?

What is a rectangle?

This type of quadrilateral is

equiangular, but not equilateral

A quadrilateral with two distinct pairs of

equal adjacent sides

What is a kite?

Measure of an interior angle of a regular nonagon

What is 140⁰?

Measure of an exterior angle of a regular nonagon

What is 40⁰?

Sum of its interior angles

What is 1260⁰?

Number of diagonals in a

nonagon

What is 27?

The number of triangles created by drawing the

diagonals from a given vertex

What is 7?

Name the polygon

Final Geopardy

The sum of its interior angles is 4 times the sum of its exterior angles

What is a decagon?

Congratulations!!!!!