Today in Class....Geometry!

We are talking about Corresponding Parts of Congruent Triangles are Congruent (CPCTC). This is chapter 4 section 3 of the book we are using. Go to www.flippedhighschool.com to see a video on the study guide of 4.3 in Geometry to review. Keep in mind that there are seven true statements about congruent triangles: 1) the statement of the two triangles being congruent (keep in mind the order is important), 2) there are three statements about the sides of the triangles, and 3) there are three statements about the angles of the triangles.

Here is a video about CPCTC:


Here is a nice video made for extra credit on CPCTC:


The chapter that we are in is about ASA, SSS, and  SAS.

Five Problems That Could Appear On The Quiz

These are some problems that could appear on the quiz. Keep in mind that all triangles add up to 180 degrees.

Here are some videos on solving for angles in a Triangle Problem

Here is a video on solving for the angles in an isosceles triangle.


Here is a video on the basics of an Equilateral Triangle.

Extra Credit Assignment due on January 6, 2014!

There is a song that is sang during Christmas Time, The Twelve Days of Christmas.
The lyrics are sung for each day and added on as the days to Christmas increase.
The lyrics are:

On the twelfth day of Christmas, my true love gave to me.

12 Drummers Drumming

11 Pipers Piping

10 Lords-a-Leaping

9 Ladies Dancing

8 Maids-a-Milking

7 Swans-a-Swimming

6 Geese-a-Laying

5 Gold Rings

4 Colly Birds

3 French Hens^[7]

2 Turtle Doves

And a Partridge in a Pear Tree.

So, for an extra credit assignment. A student may turn in 'The Twelve Facts of Geometry'. Using information from Chapters 1 thru 4, students can create a song, write a rap, create a power point, create a video, or some creative medium to proclaim twelve important facts from the four chapters. It must be as lyrical as the lyrics above or have some level of rhythm to it.

Homework for December 3rd!

From pg. 185 #36-41.
Copy each sentence. Fill in the blank with sometimes, always, or never.

36. Equilateral triangles are _____________________ isosceles.
37. Scalene triangles are _______________________ isosceles.
38. Right triangles are _________________________ acute.
39. Acute triangles are _________________________ equilateral.
40. Obtuse triangles are  _______________________ scalene.
41. Equiangular triangles are ____________________ acute.

Chapter 4 Begins with 6 Kinds of Triangles

Today in class, we discussed 3 different kinds of triangles in regards to their sides. We also discussed 3 different kinds of triangles in regards to their angles. We will do some explorations with the triangles in class tomorrow and Wednesday.

Here are some notes from the day.