Myers' Math & Chess Blog

  
September 2020
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Chapter 5: Congruent Triangles

EQ: Do recall everything we have studied regarding triangles this chapter?

Assessment to test knowledge on terms for classifying triangles by sides and angles; congruent triangles from SAS, SSS, HL, ASA and AAS; Base Angle Theorem and CPCTC.

Prep work: None

Retake for Ch. 5 Test: Chpt 5 Review Version 2
Retake should be done by 1/17

Ch 7 Probability

EQ: What are the odds you remember all the different types of probability we have studied?

Assessment in class.

Prep work: None

Ch 7 Retake assignment: Ch Review p.358 (31-40) and Ch Test p.358-359 (5-27)
Complete retesting by 1/17.

Chapter 5: Congruent Triangles

EQ: Do recall everything we have studied regarding triangles this chapter?

Know terms for classifying triangles by sides and angles; congruent triangles from SAS, SSS, HL, ASA and AAS; Base Angle Theorem and CPCTC.

Prep work: Geo Ch 5 Review 2019
Geo Ch5 Review Solutions

Retake for Ch. 3 Test: Geo Ch3 Review for Retest
Retake should be done by 12/20.

Chapter 5: Congruent Triangles

EQ: Can you use congruent triangles to find the distance across a river?

Once triangles are shown to be congruent (by using 1 of the 5 triangles congruences (p273):  SAS, SSS, HL, ASA or AAS), then you can use CPCTC (Corresponding Parts of Congruent Triangles are Congruent) to find how wide the river is.

Prep work: p274(15-20, 24, 26) and p281(3-8, 15, 17)

Retake for Ch. 3 Test: Geo Ch3 Review for Retest
Retake should be done by 12/20.

Chapter 5: Congruent Triangles <= Click here for activity

EQ: What are there other shortcuts to showing triangles congruent?

Know all 5 triangles congruences (p273):  SAS (Side-Angle-Side), SSS (Side-Side-Side), HL (Hypotenuse-Leg), ASA (Angle-Side-Angle) and AAS (Angle-Angle-Side). Also know CPCTC (Corresponding Parts of Congruent Triangles are Congruent).

Prep work: Triangle Congruences and p274(15-20, 24, 26)

Retake for Ch. 3 Test: Geo Ch3 Review for Retest
Retake should be done by 12/13.

After getting shut out in quad #1 in his first Bethel quad as a 5th grader six years ago, Owen McCoy swept the top quad in what will be his last one for awhile since his family is moving to Virginia.  Other quad winners for November were: Brian Schartz (Q2); 2-way tie in Quad #3 between Brandon Young and Liam Priest; Benjamin Varro (Q4); Ridic Ferrand (Q5); 2-way tie in Quad #6 between Manny Two Crows and Max Murphy; Jeff Rodine (Q7); Kael Rodine (Q8); and Zeke Howard (Q9).

9 quads competed on November 17th

Quad 1 action with Owen, Will, Jack and Le.

Complete results from the November’s Quads can be found at:
NWSRS results   USCF results

All quads are OSCF qualifiers and NWSRS rated. Quads are also USCF rated when all members of a quad are USCF members.

The next quad is coming up on December 15th from 1:30 to 4:30. Just $10 to enter with the winner of each quad getting $10 and free admission to the next Bethel Quad. Remember if a quad chooses a longer time control, it will likely run later than 4:30.

Send an email to mike.myers@bethel.k12.or.us to reserve a spot. Onsite registration between 12:30 – 1:15.

Click this link for more details on this month’s quad: BethelQuads-flyer

Future quads dates: Jan. 12, Feb. 9, Mar. 8, Apr. 5, May 3 and Jun. 7

Chapter 5: Congruent Triangles <= Click here for activity

EQ: What type of triangles have base angles?  Are there other shortcuts to showing triangles congruent?

Know the Base Angles theorem for Isosceles triangles (p252).  SSS (Side-Side-Side) and HL (Hypotenuse Leg) theorem are introduced (p262-264).

Prep work: 5.4-5.5 BAT, SSS and HL

Retake for Ch. 3 Test: Geo Ch3 Review for Retest
Retake should be done by 12/13.