LESSON 1:
IDENTIFYING
QUADRILATERALS
GROUP ACTIVITY:
Answer Activity 2. Illustrate
thoroughly the definition of
different quadrilaterals
presented on page 306 of the
Learner’s Module.
QUADRILATERAL
• a polygon with
4 sides.
PARALLELOGRAM
• is a quadrilateral
where both pairs of
opposite sides
are parallel.
RECTANGLE
• is a parallelogram
with four right
angles.
RHOMBUS
•is a parallelogram
with four
congruent sides.
SQUARE
•is a parallelogram with
four right angles and
four congruent sides
KITE
•is a quadrilateral
with two pairs of
adjacent congruent
sides.
TRAPEZOID
•is a quadrilateral
with exactly one
pair of opposite
sides parallel.
ISOSCELES TRAPEZOID
•is a trapezoid
whose nonparallel opposite
sides
congruent.
ACTIVITY: (by pairs)
Answer Activity 3: Plot, Connect, Identify found on
page 307 of the learner’s Module and answer the
questions like:
1.Which among the figures are parallelograms? Why?
2.Which among the figures are not parallelograms?
Why?
QUIZ: Identify whether the following quadrilaterals are
parallelograms or not. Put a check mark √ under the
appropriate column and answer the questions that follow.
QUADRILATERAL
1.Trapezoid
2. Rectangle
3. Rhombus
4. Square
5. Kite
PARALLELOGRAM
NOT
PARALLELOGRAM
ACTIVITY: Identify whether the following quadrilaterals
are parallelograms or not. Put a check mark √ under the
appropriate column and answer the questions that follow.
QUADRILATERAL
1.Trapezoid
2. Rectangle
3. Rhombus
4. Square
5. Kite
PARALLELOGRAM
NOT
PARALLELOGRAM
/
/
/
/
/
ASSIGNMENT: Bring the following.
• protractor • pencil
• graphing • compass
paper
• adhesive
• ruler