This is my presentation. It contains animations, transitions and sound effects. This presentation contains the definition and special types of Quadrilaterals.

1. Good morning everyone! Before we
will start our discussion for this day,
let’s have a prayer first. I request
everyone to please stand up.

4. A Quadrilateral is a polygon with four sides.
Quadrilateral just means “four sides”. (quad means
four, lateral means side).
A Quadrilateral has four-sides, 2-dimensional (a
flat shape), closed (the lines join up), and
has straight sides.

5. Properties of Quadrilaterals:
 Four sides (edges)
 Four vertices (corners)
 The interior angles add up to 360 degrees

6. 1. Parallelogram
2. Rectangle
3. Rhombus
4. Square
5. Trapezoid
6. Kite
Types of Quadrilaterals:

7. 1. Parallelogram
A Parallelogram is a
quadrilateral with two pairs
of opposite sides parallel to
each other. Opposite angles
are also equal.

8. 2. Rectangle
A Rectangle is a
four-sided shape where
every angle is a right
angle (90°). The opposite
sides are also parallel
and equal in length.

9. 3. Rhombus
A Rhombus is a four-sided shape where all sides have
equal length. The opposite sides are also parallel and opposite
angles are equal. The diagonals bisect each other and meet in
the middle at a right angle.

10. 4. Square
A Square has equal
sides and all angles are
right angles or measures
90°. The opposite sides
are also parallel.

11. 5. Trapezoid
A Trapezoid is a quadrilateral with exactly one
pair of opposite sides parallel to each other called the
bases. The other non-parallel sides are called the legs.

12. It is called an Isosceles Trapezoid if the
sides that aren't parallel are equal in length and
both angles coming from a parallel side are equal.

13. 6. Kite
A Kite has two pairs of sides.
Each pair is made up of adjacent sides
that are equal in length. The angles are
equal where the pairs meet. Diagonals
meet at a right angle, and one diagonal
bisects the other.

14. Family Tree

15. 102°
A1.
A
B
26°
2.
Examples: Angles in Quadrilateral
Direction: Find the Angles marked with letters.

16. A
C
B
68°
88°
62°
2.
120°
84°
A
B
1.
Exercise 1: Angles in Quadrilateral
Direction: Find the Angles marked with letters.

17. Assignment:
Using the Venn diagram, present the
relationship of the types of Quadrilaterals.
Write it in a one whole sheet of
intermediate paper and pass it next
meeting.

19. Prepared by:
Francisco, Reymond C.

20. 1) 102° + 90° + 90° + A = 360°
282° + A = 360°
A = 360° - 282°
A = 7𝟖°
102°
A
Examples: Angles in Quadrilateral
Solutions:
back

21. 2) 2A + 2B= 360°
B = (90° + 26°)
B = 116°
2A + 2(116°) = 360°
2A + 232° = 360°
2A = 360° - 232°
2A= 128°
A =
128°
2
A = 64°
Examples: Angles in Quadrilateral
Solutions:
A
B
26°
back

22. 1) A = 84°
A + B + 90° + 120° = 360°
84° + B + 90° + 120° = 360°
B + 294° = 360°
B = 360° - 294°
B = 6𝟔°
Exercise 1: Angles in Quadrilateral
Solutions:
120°
84°
A
B
back

23. A
C
B
68°
88°
62°
2) 88°+ B + 68° + 62° = 360°
B + 218° = 360°
B = 360° - 218°
B = 142°
Exercise 1: Angles in Quadrilateral
Solutions:

24. A + 68° + 62° = 180°
A + 130° = 180°
A = 180° - 130°
A = 5𝟎°
Exercise 1: Angles in Quadrilateral
Solutions:
C + 88° + 62° = 180°
C+ 150° = 180°
C = 180° - 150°
C = 3𝟎°A
C
B
68°
88°
62°
back