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CHAPTER 6 – Quadrilaterals. Quadrilaterals. Quadrilaterals are any polygons which have four sides. We will be looking at the following polygons: Parallelograms, Kites, Rhombuses, Rectangles, Squares, Trapezoids, Isosceles Trapezoids. Classifying Polygons. - PowerPoint PPT Presentation
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CHAPTER 6 – Quadrilaterals
QuadrilateralsQuadrilaterals are any polygons which have
four sides. We will be looking at the following polygons:
Parallelograms, Kites, Rhombuses, Rectangles, Squares, Trapezoids, Isosceles Trapezoids.
Classifying PolygonsPolygons are easier to understand when we
organize them in to a family tree.
How are you at classifying things?Organize the following words in tree shaped
organizerDog, Mammal, Cat, German Shepherd,
Animal, Reptile Animal
Mammal
Reptile
DogCat
German Shepherd
This arrangement puts topics in order from large categories to smaller ones.
ParallelogramsParallelogram is a quadrilateral with two sets
of parallel sides
Why is there a rectangle included here?
What other shapes could also be displayed here?
RectanglesRectangles are parallelograms with four right
angles.
RhombusA Rhombus is a parallelogram with 4
congruent sides.
Why is there a square included on this slide?
SquaresSquares are parallelograms with 4 congruent
sides and 4 rights angles.
TrapezoidsTrapezoids are quadrilaterals with exactly
one set of parallel sides
Isosceles TrapezoidsIsosceles Trapezoids are trapezoids with two
congruent legs
KitesKites are quadrilaterals with no sets of
parallel sides and 2 sets of congruent sides which are adjacent to each other.
Note: There are many other quadrilaterals which also have no sets of parallel sides that we do not give names to
Quadrilateral Family TreeYou and a partner now have 10 minutes to
organize each of the quadrilaterals into a family tree. Use the following words: quadrilateral, parallelogram, rectangle, square, trapezoid, isosceles trapezoids, kite.
Complete the graphic organizer.
Quadrilateral Q’s – True or FalseAll Squares are Rectangles.
TrueA trapezoid is a parallelogram.
FalseA rhombus can be a kite.
FalseSome parallelograms are squares.
TrueEvery Quadrilateral is a parallelogram.
False
More Quadrilateral Q’sWhat are all of the possible names one could
use for a square?Rhombus, Rectangle, Parallelogram,
Quadrilateral
Find x and y.Kite
x + 3 14
y-72x - 1
Find x and yRhombus
10 + 2x
4y- 2
8x-2
2y+6
HomeworkP 290 (1-12,19-26,36,46-49)