Quadrilateral
found at home
WHAT
WHAT
IS GEOMETRIC
IS QUADRILATERAL?
REASONING?
Itaisclosed,
the ability
two-dimensional
to use geometric
shape
concepts
which has
and
fourdefinitions
straight sides.
to create
The polygon
conclusions.
has four
vertices or corners.
It has six types:
PARALLELOGRAM
RHOMBUS
Parallelogram is a quadrilateral
that has two sets of parallel sides
and two sets of congruent angles.
Rhombus is a parallelogram with
Conclusion
based onsides.
facts
four congruent
and verified true statements
Conclusion is proven true for
all cases.
SQUARE
Square is a parallelogram with four
congruent sides and four
congruent anles.
RECTANGLE
Rectangle is a parallelogram with
four congruent angles.
Created by: Argelie May T. Ganayo
TRAPEZOID
KITE
Trapezoid is a quadrilateral with
exactly one pair of parallel sides.
Kite is a quadrilateral with two
pairs of consecutive sides that are
congruent.
Quadrilateral
found at home
IDENTIFY IF IT IS PARALLELOGRAM
book
size: 9 x 11 inches
angle: right angle
diagonal: bisect each other and congruent
IT'S PARALLELOGRAM!
Type: Rectangle
chessboard
size: 21 x 21 inches
angle: right angle
diagonal: Perpendicular, bisect vertices, and
congruent
IT'S PARALLELOGRAM!
Type: Square
hand bag
size: 22 x 14 inches
angle: acute and obtuse angle
diagonal: isosceles are congruent, but they do
not bisect each other
NOT A PARALLELOGRAM!
Type: Trapezoid
refrigerator
size: 39 3/4 x 71 1/4 inches
angle: right angle
diagonal: bisect each other and congruent
IT'S PARALLELOGRAM!
Type: Rectangle
picture frame
size: 16 x 16 inches
angle: right angle
diagonal: Perpendicular, bisect vertices, and
congruent
IT'S PARALLELOGRAM!
Type: Square
rhombus shape earrings
size: 2 1/2 x 2 1/2 inches
angle: right angle
diagonal: bisect each other, perpendicular, and
bisect vertices
IT'S PARALLELOGRAM!
Type: Rhombus
pizza box
size: 16x16 inches
angle: right angle
diagonal: Perpendicular, bisect vertices, and
congruent
IT'S PARALLELOGRAM!
Type: Square