STUDENT ACTIVITY 1 STUDENT ACTIVITY 2

1. Quadrilaterals STUDENT ACTIVITY 1 STUDENT ACTIVITY 2

2. STUDENT ACTIVITY 1

3. FIGURE: A B D C

4. 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… A B D C

5. 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… A B D C

6. 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… A B D C

7. 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 Questions and Answers… A B D C

8. STUDENT ACTIVITY 2

9. OBJECTIVE In this activity, you will recognize the types of quadrilaterals and its properties. • PROCEDURE: • 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.

10. QUADRILATERALS SQUARE RHOMBUS TRAPEZOID PARALLELOGRAM RECTANGLE TRAPEZIUM

12. RELATIONSHIPS AMONG QUADRILATERALS

13. END

14. 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.

15. 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.

16. In geometry, a rhombus (plural rhombi) or rhomb (plural rhombs) is an equilateralquadrilateral. 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.

17. 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. BACK

18. 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. BACK

19. A trapezium is a quadrilateral with no parallel sides BACK