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Geometry Reflective Portfolio
Unit #8 Polygons
At the conclusion of each unit, you will create a one page study sheet.
You must write the title of the unit and its number.
All future study sheets will need to have the same sections!
Section #1: Vocabulary (words and/or diagrams)
 Polygon
 Quadrilateral
 Equilateral
 Equiangular
 Regular polygon
 Diagonal
Section #2: Formulas/Equations/Theorems
 Formula/method for finding the sum of the interior angle measures of a
regular polygon
 Formula/method for finding one interior angle measure of a regular
polygon
 Sum of all exterior angle measures of a regular polygon
 Formula/method for finding one exterior angle measure of a regular
polygon
 Explain the relationship between an interior angle and an exterior angle
of a regular polygon
 Formula for finding the number of diagonals of a polygon
 Formula/method for finding the median(mid-segment) of a trapezoid
 Explain the 3 theorems you can use to prove 2 triangles are similar
 Similar triangles have sides that are in___________________.
 In a proportion, the product of the means =_____________________.
 Parallel line theorems
 Proving lines are parallel theorems
 Explain 5 ways to prove a quadrilateral is a parallelogram
Section #3: Key methods and concepts (write out the process and/or a solved
example)
 Write out the unique properties(include sides, angles, diagonals) of each
quadrilateral and its area formula:
Parallelogram
Rectangle
Rhombus
Square
Trapezoid
isosceles trapezoid
Kite