Classifying Quadrilaterals

Objective:To define and classify special types of quadrilaterals

Good Morning! AGENDA1. Homework Check2. Warm Up [Algebra]3. Notes –Classifying

Quadrilaterals4. Practice

HOMEWORKTake Home Transformation Test

Quadrilateral “Club”

Geome-“tree”

#1 Find the values of the variables.

𝟒 𝒚

𝟏𝟐

𝟐 𝒙−𝟔

What type of quadrilateral is

it?

#2 Find the values of the variables.

𝟑 𝒙−𝟏𝒚 °

𝟏𝟎𝟎°

𝟐 𝒙+𝟓

What type of quadrilateral is

it?

#3 Find the values of the variables.

𝟐 𝒚+𝟓𝒙+𝟔

𝟐 𝒙+𝟒𝟑 𝒙−𝟓

What type of quadrilateral is

it?

Using coordinates to classify quadrilaterals.1.Plot and label points on coordinate plane. Connect points to draw

quadrilateral.

2.Name all the sides of the quadrilateral.

3. Use the distance formula to determine the lengths of the sides:

4. Use the slope formula to find the slopes of the sides: 212

212 yyxxd

12

12

xxyym

What to do with the information…If opposite sides or adjacent sides have the same length, they are

congruent. If opposite sides have the same slope, they are parallel.

If adjacent sides have opposite, reciprocal slopes they form right angles.

Moral of the Story: YOU NEED TO KNOW THE PROPERTIES OF EACH QUADRILATERAL TO DRAW ANY CONCLUSIONS!

#4 Determine the most precise name for the quadrilateral with the following vertices.

Moral of the Story: YOU NEED TO KNOW THE PROPERTIES OF EACH QUADRILATERAL TO DRAW ANY CONCLUSIONS!

𝐴 (−3,3 ) ,𝐵 (2,4 ) ,𝐶 (3 ,−1 ) ,𝑎𝑛𝑑𝐷(−2,2)

Side Length Slope

#5 Determine the most precise name for the quadrilateral with the following vertices.

Moral of the Story: YOU NEED TO KNOW THE PROPERTIES OF EACH QUADRILATERAL TO DRAW ANY CONCLUSIONS!

𝐴 (−4,4 ) ,𝐵 (−2,9 ) ,𝐶 (8,9 ) ,𝑎𝑛𝑑 𝐷(10,4)

Side Length Slope