Transcript Quadrilateral

NAME:
Math-7 NOTES
DATE: ______/_______/_______
What: Quadrilaterals
Why: To introduce basic geometry vocabulary and focus on quadrilateral
relationships.
Essential Vocabulary
Congruent– objects that are the __________ 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.
Adjacent Sides— two sides of a polygon that share the
same ___________ (side-by-side).
Opposite Sides— sides that are directly ________________
from one another.
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!
Examples of “Congruency” and “Parallel” Notation:
Matching tick
marks mean those
sides are
_________________.
Matching arrow
marks mean those
sides are
_________________.
True or False (correct “False” answers in order to make them “True”):
1) _____ Every square is also a rhombus.
2) _____ Every rhombus is also a square.
3) _____ Every rectangle is a parallelogram.
4) _____ Parallelograms have opposite sides that are perpendicular.
5) _____ A square is a special type of trapezoid.
6) _____ Not all rectangles are squares.
7) _____ It is impossible for a square to also be a rectangle.
8) _____ A trapezoid is a parallelogram.
9) _____ Every trapezoid is also a quadrilateral.
10) _____ A quadrilateral can have more than four angles.
11) _____ The trapezoid is the only quadrilateral that is NOT a
parallelogram.
12) _____ SpongeBob has square pants.
NAME:___________________________________
Math-7 Practice
DATE: ______/_______/_______