*Proving Triangles Congruent Proving Triangles Congruent Two geometric figures with exactly the same size and shape. The Idea of a Congruence A C B D E F How much do ...*

*The Idea of a Congruence A C B D E F How much do you need to know. . . . . . about two triangles to prove that they are ...*

*Triangles By Christine Berg Edited By VTHamilton Triangles Can be classified by the number of congruent sides Scalene Triangle Has no congruent sides Isosceles ...*

*4.2 Congruence and Triangles Geometry Fall 2005 Mrs. Spitz Standards/Objectives: Standard 2: Students will learn and apply geometric concepts Objectives: Identify ...*

*Parallel Lines and Angles Definition Two different given lines L1 and L2 on a plane are said to be parallel if they will never intersect each other no matter how far ...*

*Obtuse Triangles An obtuse triangle is a triangle in which one of the angles is greater than 90°. Right Triangles A right triangle is triangle with an angle of 90°.*

*4.2 Congruence & Triangles Geometry Mrs. Spitz Fall 2005 Objectives: Identify congruent figures and corresponding parts Prove that two triangles are congruent 4.2 ...*

*4.3 Triangle Congruence by ASA and AAS Chapter 4 Congruent Triangles 4.3 Triangle Congruence by ASA and AAS Postulate 4-3: Angle-Side-Angle (ASA) If two angles and ...*

*Similarity and Congruence Identifying Similarity and Congruence Finding Missing Measures ... same shape; different size CONGRUENT same shape; same size congruent triangles 93 ...*

*Students will be able to find angle and side measures of similar triangles using congruence and proportions. Students will apply the properties of similar triangles to ...*

*That is: Area of Spherical Triangles Area of Spherical Triangles Area of Spherical Triangles Congruence Theorems for Spherical Triangles In Euclidean Geometry, we have ...*

*Corresponding parts of congruent triangles are congruent. If you can prove congruence using a shortcut, then you KNOW that the remaining corresponding parts are congruent.*

*Triangles and Congruence § 5.1 Classifying Triangles § 5.2 Angles of a Triangle § 5.3 Geometry in Motion § 5.4 Congruent Triangles § 5.5 SSS and SAS*

*How do we prove overlapping triangles are congruent? Aim: Do Now: State the names of two triangles in each diagram: B A D 1) 2) R H B C S Q F M 3) G A 4) G L K P D V ...*

*4.3 Triangle Congruence by ASA and AAS 2 cards Angle Side Angle ... angles are congruent Reflexive AAS Ex 3: Prove the triangles are congruent 4.3 Triangle Congruence by ...*

*4.3 Δs Objectives Name and label corresponding parts of congruent triangles Identify congruence transformations Δs Triangles that are the same shape and ...*

*Then complete the congruence statement and state the congruence conjecture that supports the congruence statement. If the triangles aren’t congruent, say so.*

*Proportions & Similar Triangles C Investigation – Proportional parts of triangles ... Given = See previous proof ÐB ÐB Reflexive property of congruence ∆ABC ...*

*... for Addition & Multiplication Multiplicative & Distributive Property Multiplicative Property of Zero Properties of Equality Addition Properties of Equality & Congruence ...*

*Example 2A Example 2B Example 2C Example 2C Example 2 ANS Example 2A A B C LESSON 4-4 & 4-5: Proving Triangles Congruent Side-Side-Side (SSS) Congruence 3 pairs of ...*

*Objectives Use congruence of triangles to conclude congruence of corresponding parts. Develop and use the Isosceles Triangle Theorem. 4.4 Using Triangle Congruence ...*

*... included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the two triangles are congruent. A S S R S T X Z Y Congruence ...*

*41 Missing angles in triangles 40 Classify s and s 39 Similarity and Congruence 38 Similar triangles and proportions 37 WP: Similar triangles and proportions*

*KS3 Mathematics S2 2-D shapes Contents S2.1 Triangles and quadrilaterals Contents S2.2 Polygons Contents S2.3 Congruence Contents S2.4 Tessellations Contents S2.5 ...*

*... sides of another triangle, then the triangles are similar CSSTP – Corresponding Sides of Similar Triangles are Proportional (analogous to CPCTC in triangle congruence ...*