Mon 11/25. Boot-Up 11.25.13 / 6 min. 1)Are the  s shown  ?  Yes  No 2) Theorem used : ______ 3) Show proof.

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Presentation transcript:

Mon 11/25

Boot-Up / 6 min. 1)Are the  s shown  ?  Yes  No 2) Theorem used : ______ 3) Show proof.

6-2b BD = AC BC = BC  B   C SAS   ABD   BCA

There are 2 things you have to do to prove congruence. They are: 1) Prove Similarity. (That they’re the Same Shape.) 2) Prove Side Lengths have a common ratio of 1. (That they’re the Same Size.)

6-2a If you prove similarity by virtue of  congruence, how many sides do you have to prove are congruent to prove  s are  ?

If 2 sides & the included  of one  are  to the corresponding parts of another , the  s are . 1) SAS (Side-Angle-Side) 6-12

If 3 sides of 1  are  to 3 sides of another , the  s are . 2) SSS (Side-Side-Side)

If 2  s and the included side of 1  are  to the corresponding parts of another , the  s are . 3) ASA (Angle-Side-Angle)

If 2  s and the non- included side of one  are  to the corresponding parts of another , the  s are . AAS 4) AAS (Angle-Angle-Side)

If the hypotenuse & leg of one right  are  to the corresponding parts of another right , the right  s are . HL (Right  s Only) 5)

Why not AA for Congruence?

6-1 Are these  s also  ? Explain how you know.

6-2a Are these  s also  ? Explain how you know. BD  DBA   DBC  ABD   CBD AA   BDC   BDA BD = BD = 1 =

d  ABD   BAC  A   B  C   D AA  AB = AB  ABD   BCA

6-32a AC = AC  DCA   BAC  ABC   CDA  D   B AAS 

6-2c

8-49a Wanna hint? Read p.506!

8-49b This’s tougher than battling Doc Ock! Better re-Read p.506!

8-51 Wouldn’t it be great if we could conjure up a shortcut for this?!

Tue 11/26

Boot-Up / 6 min What is the area of this shape? ______

Test Rules: 1)No noise / talking / disruptions. 2)Eyes on your own papers. 3)When finished, put pencil down, open textbook, & solve the following problems on pages : 8-116, 8-119, 8-121, 8-124