STUDENT ACTIVITY 1STUDENT ACTIVITY 2

STUDENT STUDENT ACTIVITY 1ACTIVITY 1STUDENT STUDENT

ACTIVITY 1ACTIVITY 1

FIGURE:

Questions and Answers…

1. What are the sides of the quadrilaterals?

♣ Line Segments AC, AB, BD and CD

2. What are the angles?

♣ Angles A, B, C and D

3. The Vertices

♣ Points A, B, C and D

Questions and Answers…

4. Which sides are opposite? Consecutive or non- opposite?

♣ Opposite Sides: Line Segments AB and CD, AC and BD

♣ Consecutive Sides: Line Segments AB and AC,

CD and BD, BD and BA, CD and AC

Questions and Answers…

5. Which angles are opposite? Consecutive?

♣ Opposite Angles:

Angle BAC & BDC, angle ABD & DCA,

♣ Consecutive Angles: Angle BAC & ABD, angle ABD &

BDC, angle BDC & DCA, angle DCA & BAC

Questions and Answers…

6. If we draw a line connecting the opposite vertices,a. How many lines will be formed?

♣ Two lines will be formed.b. What kind of lines are they?

♣ They are called DIAGONALS.c. Name these lines.

♣ Line AD and line BC

STUDENT STUDENT ACTIVITY 2ACTIVITY 2STUDENT STUDENT

ACTIVITY 2ACTIVITY 2

OBJECTIVEIn this activity, you will recognize the types

of quadrilaterals and its properties.PROCEDURE:

1. Tell each group to surf in the internet about the following the following quadrilaterals:

trapezoid, parallelogram, rectangle, square, rhombus, and trapezium.

2. Ask students to create a “map” or chart that shows the relationships among the different

types of quadrilaterals.

3.Then, each group will explain the chart and its hierarchy to the class.

QUADRILATERALS

SQUARE TRAPEZOI

DRHOMBUS

PARALLELOGRA

M

TRAPEZIUM

RECTANGLE

RELATIONSHIPS AMONG RELATIONSHIPS AMONG QUADRILATERALSQUADRILATERALS

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A trapezoid (in North America) or trapezium (in Britain and elsewhere) is a quadrilateral, which is defined as a shape with four sides, which has one set of parallel sides. Some authors define it as a quadrilateral having exactly one set of parallel sides, so as to exclude parallelograms, which otherwise would be regarded as a special type of trapezoid.

In geometry, a parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite angles of a parallelogram are congruent. The three-dimensional counterpart of a parallelogram is a parallelepiped.

In geometry, a rhombus (plural rhombi) or rhomb (plural rhombs) is an equilateral quadrilateral. In other words, it is a four-sided polygon in which every side has the same length. A rhombus can be said to be the combination of a parallelogram and a kite.

In geometry, a rectangle is defined as a quadrilateral where all four of its angles are right angles. From this definition, it follows that a rectangle has two pairs of parallel sides; that is, a rectangle is a parallelogram. A square is a special kind of rectangle where all four sides have equal length; that is, a square is both a rectangle and a rhombus. A rectangle that is not a square is colloquially known as an oblong.

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A square (regular quadrilateral) is a special case of a rectangle as it has four right angles and parallel sides. Likewise it is also a special case of a rhombus, kite, parallelogram, and trapezoid.

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A trapezium is a quadrilateral with no parallel sides

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