'Included side' diaporamas de présentation

Please pick up your workbook.

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Monday, September 23 rd

Monday, September 23 rd. Warm Up. S is the centroid. If NP=7, what is PL? If SQ=4, what is SN ?. Week at a Glance. Monday: Review-Centroid and Proofs Tuesday: parallelogram proofs Wednesday: Similar Triangles Thursday: Similarity Triangle Proofs

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40?

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Proving Triangles Congruent

Proving Triangles Congruent. F. B. A. C. E. D. The Idea of a Congruence. Two geometric figures with exactly the same size and shape. How much do you need to know. . . . . . about two triangles to prove that they are congruent?.

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DRILL

DRILL. Given: N is the midpoint of LW N is the midpoint of SK Prove:. Statements Reasons. N is the midpoint of LW N is the midpoint of SK. Given. Definition of Midpoint. Vertical Angles are congruent. SAS Postulate.

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Theorems to Prove Congruent Triangles

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Congruent Triangles Toolkit 4.1-4.3

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Warm Up

Warm Up. Write a congruence statement List all corresponding sides and angles using the following congruence statement. Agenda. Warm Up Homework Check 4-2, 4-3, 4-6 Triangle Congruence Figures Homework. Practice 4-1 Homework Check:. 1. <1 = 110, <2=120 2. <4=135, <3=90

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4.4 Proving Triangles are Congruent: ASA and AAS

4.4 Proving Triangles are Congruent: ASA and AAS. Geometry. Objectives:. Prove that triangles are congruent using the ASA Congruence Postulate and the AAS Congruence Theorem Use congruence postulates and theorems in real-life problems. Assignment. Worksheet Quiz after this section.

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40?

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Congruent triangles have 3 congruent sides and 3 congruent angles.

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Proving Triangles Congruent

Proving Triangles Congruent. How much do you need to know. . . . . . about two triangles to prove that they are congruent?. Corresponding Parts. AB ? DE BC ? EF AC ? DF ? A ? ? D ? B ? ? E ? C ? ? F. B. A. C. E. F. D.

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WELCOME

. WELCOME. THE. TO. MATHS PROJECT. CONSTRUCTION OF. TRIANGLES AND ITS. PROPERTIES. SUBMITED BY. SUBMITED BY S. ASWATHY.P ASWATHY.S INDHUBALA.B.A SARASWATHY.U. S.T.D: 10.A. GOVT.GRILS.HIGH.SCHOOL CHALAI.

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5.5/5.6 Proving Triangles Congruent

5.5/5.6 Proving Triangles Congruent. SSS and SAS. What You'll Learn. You will learn to use the SSS and SAS tests for congruency. B. A. C. 2) Construct a segment congruent to AC. Label the endpoints of the segment D and E. 3) Construct a segment congruent to AB.

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Wednesday, September 18 th

Wednesday, September 18 th. Warm Up. ? <g = ____________ JG=_____________. Important. Next Quiz: Friday 9/20 PROOFS. The 5 Triangle Congruence's *You must have these memorized by Friday! . Side-Side-Side (SSS) Congruence Postulate.

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4-7

4-7. Triangle Congruence: ASA, AAS, and HL. Holt Geometry. Section 4.7. Holt McDougal Geometry. Warm Up 1. What are sides AC and BC called? Side AB ? 2. Which side is in between ? A and ? C ? 3. Given ? DEF and ? GHI , if ? D ? ? G and ? E ? ? H , why is ? F ? ? I ?.

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Proving Triangles Congruent

Proving Triangles Congruent. jc-schools.net/ PPT / geometry congruence. ppt. Angle-Side-Angle (ASA). Postulate 8-3: If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.

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Proving Triangles Congruent

Proving Triangles Congruent. jc-schools.net/ PPT / geometry congruence. ppt. F. B. A. C. E. D. The Idea of a Congruence. Two geometric figures with exactly the same size and shape. jc-schools.net/ PPT / geometry congruence. ppt. How much do you need to know. . .

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4-5 Warm-Up

4-5 Warm-Up. p.139 # 34. A. E. F. D. C. B. Triangle ABC is equilateral. How do you know triangle DEF is also equilateral?. Warm-Up. C. F. Given:. E. B. D. A. Prove:. Other methods of Proving Triangles Congruent. Theorem 4-3: AAS Theorem

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Proving Triangles Congruent

Proving Triangles Congruent. Sections 4-4 and 4-5. SSS Postulate. If the sides of one triangle are congruent to the sides of a 2 nd triangle, then the triangles are congruent. SAS Postulate.

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