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Determine Congruent Triangles

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Determine Congruent Triangles

TEKS Math: G.6.B

(B) Prove two triangles are congruent by applying the Side-Angle-Side, Angle-Side-Angle, Side-Side-Side, Angle-Angle-Side, and Hypotenuse-Leg congruence conditions

AU Math: ACMMG201

(Y8) Develop the conditions for congruence of triangles (ACMMG201)

CCSS Math: HSG.CO.7

HSG.CO.7 Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.

This math lesson teaches students how to use the SAS, SSS, ASA and AAS postulates/theorem to determine whether two triangles are congruent. The lesson includes research-based strategies and strategic questions that prepare students for standardized assessments. In this lesson, students will identify given information and determine which postulate or theorems apply, and then use it to determine whether a second triangle is congruent. In addition to the lesson, there are two pages of independent practice and three pages of periodic review with questions modeled after standardized assessments.

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Standard Alignments:

TEKS Math: G.6.B

(B) Prove two triangles are congruent by applying the Side-Angle-Side, Angle-Side-Angle, Side-Side-Side, Angle-Angle-Side, and Hypotenuse-Leg congruence conditions

AU Math: ACMMG201

(Y8) Develop the conditions for congruence of triangles (ACMMG201)

CCSS Math: HSG.CO.7

HSG.CO.7 Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.


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