8th GRADE Illustrating Triangle Congruence (M8GE-IIID-1) THIRD QUARTER 8th GRADE MATHEMATICS 8 Illustrating Triangle Congruence (M8GE-IIID-1) Mark Anthony A. Mapula Teacher II

OBJECTIVES: Here’s what you will learn for today: Discuss the idea of congruence. Illustrate triangle congruence.

LET’S PLAY A GAME! BRING ME THE FOLLOWING OBJECTS: PAIR OF EARRINGS KING'S WISH BRING ME THE FOLLOWING OBJECTS: PAIR OF EARRINGS PAIR OF SHOES EYE GLASSES PAIR OF NOTEBOOKS

TO WHOM SHOULD I PAIR At a count of five, find your partner holding the same shape of triangle as yours and shout “BASIC LANG”! if you are done. Just stay with your partner for some questions/instructions.

TO WHOM SHOULD I PAIR 01 Name your triangles.

What kind of triangles are they? TO WHOM SHOULD I PAIR 02 What kind of triangles are they?

Which parts of one triangle corresponds to the other? TO WHOM SHOULD I PAIR 03 Which parts of one triangle corresponds to the other?

What is the symbol for correspondence? TO WHOM SHOULD I PAIR 04 What is the symbol for correspondence?

Why did you say that they are congruent? TO WHOM SHOULD I PAIR 05 Why did you say that they are congruent?

What is the symbol for congruence? TO WHOM SHOULD I PAIR 06 What is the symbol for congruence?

Answer the following questions: LET’S PROCESS! Answer the following questions: What are congruent triangles? What is the symbol for congruence? How many congruent corresponding parts are there? What is the symbol for correspondence? How do you put identical markings on congruent corresponding parts. Illustrate. Where can you see/find congruent triangles?

EXERCISES LET’S DO IT!

1. △ABD ≅ △ CBD. Write down the six pairs of congruent corresponding parts.

2. Draw △MAX ≅ △ KFC where, MA ≅ KF AX ≅ FC MX ≅ KC ∠ M ≅ ∠ K ∠ A ≅ ∠ F ∠ X ≅ ∠ C

3. Which of the following shows the correct congruence statement for the figure on the right. A. △ PQR ≅ △ KJL B. △ PQR ≅ △ LJK C. △ PQR ≅ △ LKJ D. △ PQR ≅ △ JLK

When are two triangles congruent?

EVALUATION YOU GOT THIS! Illustrate the triangle congruence by listing down and putting identical markings on the congruent corresponding parts.

1. Write the six congruent corresponding parts 1. Write the six congruent corresponding parts. Refer to the figure on the right.

2. Draw the figure and mark the identical congruent corresponding parts of △ RUB ≅ △ TUG

ASSIGNMENT TAKE NOTE!

Draw two congruent triangles and identify their congruent corresponding parts.

“The best angle from which to approach any problem is the TRY-ANGLE.”

THANK YOU!