3rd

1. Tell something on
the following
pictures

3. 1. What have you
observed on the pictures
shown in the screen?

4. 2. Which part of the
pictures represent
polygon?

5. 3. What kind of polygon
did you see in the
picture?

6. Activity 1: REFRESH
YOUR MIND!

10. Activity 2: WE ARE
FAMILY!

12. a. How are quadrilaterals
related to each other?

13. b. Which quadrilaterals
are parallelograms?

14. Groupings

15. Group 1 and 2: Study the figure
on the next slide and name as
many parallelograms as you
can. If the parallelogram is
special, tell whether if it is a
rectangle, rhombus or square.

16. Examples:
Rhombus
BCHF
Parallelogram
GIML

17. Group 3 -5: Using the Cartesian
plane, plot each sets of points
and connect consecutively to
form a quadrilateral. Identify
whether the figure is a
parallelogram or not.

18. 1. A (-1,2), B (-1,0), C (1,0), D (1, 2)
2. E (1, 0), F (3, 0), G (0, -2), H (3, -2)
3. I (-4, -2), J (-4, -4), K (0, -2), L (0, -4)
4. M (3, 4), N (2, 2), O (3, 0), P (4, 2)
5. Q (-4, 2); R (-5,1), S (-3, 1), T (-4, -2)

19. • Quadrilateral is a closed
figure with four sides.
• Parallelogram is a
quadrilateral with two pairs
of opposite sides parallel

20. • Rectangle is a parallelogram
with all angles are right
• Rhombus is a parallelogram
with all sides congruent
• Square is a parallelogram with
all sides congruent and with all
angles are right.

21. Assignment # 3.1
Directions: In the picture is the
temporary ICT room of Kaong
National High School while the
construction of the new building is
on-going. Name all the objects that
represent parallelogram in this
room.

23. Using the schematic diagram of
quadrilaterals, classify each statement
as true or false.

24. a. Every rectangle is a quadrilateral.
b. Every rectangle is a
parallelogram.
c. Every square is a rectangle
d. Every parallelogram is a square
e. A square is both a rectangle and
a rhombus.