Four sided polygon Foldable 1. Take out a piece of notebook paper and make a hot dog fold over from the right side over to the pink line.

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Presentation transcript:

Four sided polygon

Foldable 1. Take out a piece of notebook paper and make a hot dog fold over from the right side over to the pink line.

Foldable 2. Now, divide the right hand section into 5 sections by drawing 4 evenly spaced lines. The fold crease 3. Use scissors to cut along your drawn line, but ONLY to the crease!

Foldable 4. Write QUADRILATERALS down the left hand side The fold crease

Foldable 5. Fold over the top cut section and write PARALLELOGRAM on the outside. The fold crease 6. Reopen the fold.

Foldable On the left hand section, draw a parallelogram. On the right hand side, write the definition. Write the area formula on the shape itself.

A quadrilateral is a PARALLELOGRAM if and only if it has two sets of parallel sides

Area Formula

Foldable * On the left hand section, draw a rectangle. * On the right hand side, write the definition. * Write the area formula on the shape.

A parallelogram with FOUR RIGHT ANGLES

A quadrilateral is a RECTANGLE if and only if it has four right angles

Diagonals are Congruent

Foldable * Fold over the third cut section and write RHOMBUS on the outside. * Reopen the fold.

Foldable * On the left hand section, draw a rhombus. * On the right hand side, write the definition. * Write the area formula on the shape.

A parallelogram with FOUR CONGRUENT SIDES

A quadrilateral is a RHOMBUS if and only if it has four congruent sides

Diagonals Bisect A Pair of Opposite Angles

Diagonals are Perpendicular

d1d1 d2d2 A = d1 x d2 ÷ 2 48 ÷ 2 = 24 A = 6 x 8 ÷ 2 A = 24

Foldable * Fold over the fourth cut section and write SQUARE on the outside. * Reopen the fold. 1. Has 4 Congruent sides 2. Diagonals bisect opposite angles. 3. Diagonals are perpendicular. 4. All properties of parallelograms. 1. Opposite sides parallel. 2. Opposite sides congruent. 3. Opposite angles are congruent. 4. Consecutive angles are supplementary. 5. Diagonals bisect each other. 1. Has 4 right angles. 2. Diagonals are congruent. 3. All properties of parallelogram.

Foldable * On the left hand section, draw a square. * On the right hand side, list all of the properties of a square. 1. Opposite sides parallel. 2. Opposite sides congruent. 3. Opposite angles are congruent. 4. Consecutive angles are supplementary. 5. Diagonals bisect each other. 1. Has 4 right angles. 2. Diagonals are congruent. 3. All properties of parallelogram. 1. Has 4 Congruent sides 2. Diagonals bisect opposite angles. 3. Diagonals are perpendicular. 4. All properties of parallelograms.

A parallelogram with FOUR RIGHT ANGLES AND FOUR CONGRUENT SIDES

A quadrilateral is a SQUARE if and only if it has four congruent sides and four right angles

Holds same properties as Rhombus and Rectangle

Foldable 1. 4 congruent sides and 4 congruent (right) angles 2. All properties of parallelogram, rectangle, and rhombus 1. Opposite sides parallel. 2. Opposite sides congruent. 3. Opposite angles are congruent. 4. Consecutive angles are supplementary. 5. Diagonals bisect each other. 1. Has 4 right angles. 2. Diagonals are congruent. 3. All properties of parallelogram. 1. Has 4 Congruent sides 2. Diagonals bisect opposite angles. 3. Diagonals are perpendicular. 4. All properties of parallelograms.

Foldable 1. Opposite sides parallel. 2. Opposite sides congruent. 3. Opposite angles are congruent. 4. Consecutive angles are supplementary. 5. Diagonals bisect each other. 1. Has 4 right angles. 2. Diagonals are congruent. 3. All properties of parallelogram. 1. Has 4 Congruent sides 2. Diagonals bisect opposite angles. 3. Diagonals are perpendicular. 4. All properties of parallelograms congruent sides and 4 congruent (right) angles 2. All properties of parallelogram, rectangle, and rhombus

ONE PAIR OF PARALLEL SIDES

A quadrilateral is a TRAPEZOID if and only if it has ONE pair of parallel sides

leg base Leg angles are supplementary Leg angle 1 Leg angle 2

Base (b 2 ) Base (b 1 ) Midsegment is ½ the sum of the lengths of the bases Midsegment =½ (b 1 + b 2 )

leg base Isosceles: Base angles are congruent Base angle 2 Base angle 1

Isosceles: Diagonals are congruent

TWO PAIRS OF CONSECUTIVE CONGRUENT SIDES (opposite sides not congruent)

A quadrilateral is a KITE if and only if it has two pairs of congruent consecutive sides

Diagonals are perpendicular

Short diagonal is bisected

ONE pair of opposite angles are congruent (not both)

The other angles are bisected by the diagonal

Foldable 1. One pair of parallel sides 2. Leg angles supplementary 3. Midsegment= ½(b 1 + b 2 ) 4. Isosceles—see back 1. 2 pairs of consecutive sides congruent 2. 1 pair of opposite angles congruent 3. Diagonals perpendicular 4. Small diagonal bisected 5. Non-congruent angles are bisected 1. Opposite sides parallel. 2. Opposite sides congruent. 3. Opposite angles are congruent. 4. Consecutive angles are supplementary. 5. Diagonals bisect each other. 1. Has 4 right angles. 2. Diagonals are congruent. 3. All properties of parallelogram. 1. Has 4 Congruent sides 2. Diagonals bisect opposite angles. 3. Diagonals are perpendicular. 4. All properties of parallelograms congruent sides and 4 congruent (right) angles 2. All properties of parallelogram, rectangle, and rhombus

Isosceles Trapezoid: 1. 2 pairs of congruent base angles 2. Diagonals are congruent

QUADRILATERALS PARALLELOGRAMS RHOMBUSES RECTANGLES Squares

QUADRILATERALS PARALLELOGRAMS RHOMBUSES RECTANGLES Squares 1. Diagonals bisect angles 2. Diag. perpendicular 3. 4 equal sides 1. Polygon 2. 4 sides 1. 4 rt. angles 2. Diagonals congruent 5. Consecutive angles supplementary 4. Diagonals Bisect 3. Opposite Sides parallel 2. Opposite Angles congruent 1. Opposite Sides congruent

QUADRILATERALS PARALLELOGRAMS RHOMBUSES RECTANGLES Squares 1. Diagonals bisect angles 2. Diag. perpendicular 3. 4 equal sides 1. Polygon 2. 4 sides 1. 4 rt. angles 2. Diagonals congruent 5. Consecutive angles supplementary 4. Diagonals Bisect 3. Opposite Sides parallel 2. Opposite Angles congruent 1. Opposite Sides congruent Trapezoids Kites