1. Math-7 NOTES What do you think of when you hear the word “Geometry?”
DATE: ______/_______/_______
What: Quadrilaterals
Why: To introduce basic geometry vocabulary and focus on quadrilateral
relationships.
NAME:
What do you think of when you hear the word “Geometry?”

2. Essential Vocabulary:
Congruent– objects that are _________ in size and
shape.
Line— goes ________________ in both directions. (⟷ )
Ray— goes forever in _________ direction. ( ⟶ )
Line Segment– has both a beginning and
an _______. ( )
Parallel Lines– two or more lines that will never
________________ . ( I I )
Perpendicular – two line segments/ lines that meet
in such a way that ___________ angles are formed. (┴)
Vertex — __________ where two line segments meet.
Angle— formed when two _________ come together
at the same vertex
Acute Angle— measures ________ than ______ .
Obtuse Angle–measures ________ than ______ .
Right Angle– measures exactly ______ .
Polygon— simple, closed figure formed by _____ or
more line ________________ . Polygons
are NOT __________ .
Triangle — _____ sides.
Quadrilateral — _____ sides.
Pentagon — _____ sides.
Hexagon— _____ sides.
Heptagon — _____ sides.
Octagon — _____ sides.
Nonagon — _____ sides.
Decagon — _____ sides.

3. There is a total of ___________ degrees in every quadrilateral!
HOW ARE THEY RELATED?
Vocabulary:
Quadrilateral– closed figure with ______ sides and ________ angles.
Trapezoid– has one pair of ____________ sides.
Parallelogram– opposite sides ___________ and opposite sides ____________.
Rectangle– parallelogram with 4 __________ angles.
Square– parallelogram with 4 right angles and 4 ______________ sides.
Rhombus– parallelogram with 4 congruent ___________ .
There is a total of ___________ degrees in every quadrilateral!

4. Examples of “Congruency” and “Parallel” Notation:
True or False (correct “False” answers in order to make them “True”):
_____ Every square is also a rhombus.
_____ Every rhombus is also a square.
_____ Every rectangle is a parallelogram.
_____ Parallelograms have opposite sides that are perpendicular.
_____ A square is a special type of trapezoid.
_____ Not all rectangles are squares.
_____ It is impossible for a square to also be a rectangle.
_____ A trapezoid is a parallelogram.
_____ Every trapezoid is also a quadrilateral.
_____ A quadrilateral can have more than four angles.
_____ The trapezoid is the only quadrilateral that is NOT a
parallelogram.
12) _____ SpongeBob has square pants.

6. Math-7 Practice “QUADRILATERALS” DATE: ______/_______/_______
NAME:___________________________________