Margarita Perez Texas Woman’s University MATH 4313 mago0789@yahoo
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Transcript of Margarita Perez Texas Woman’s University MATH 4313 mago0789@yahoo
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
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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
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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!!!!!