Truss Tracker WorksheetTruss Tracker Engineers use triangles in bridge trusses because they are the most rigid geometric shape. In this activity, you will analyze the blueprints of various truss designs. For each bridge, identify the classification of the highlighted triangles and determine the congruence theorem that proves the two triangles are identical. Bridge 1: Warren Truss Given: All sides of the highlighted triangles are equal. 1. Classification: By Sides By Angles 2. Congruence Theorem: Bridge 2: King Post Given: The vertical post is the perpendicular bisector of the base. 1. Classification: By Sides By Angles 2. Congruence Theorem: Bridge 3: Pratt Truss Given: Right triangles with congruent hypotenuses and one pair of congruent legs. 1. Classification: By Sides By Angles 2. Congruence Theorem: Bridge 4: Howe Truss Given: Two angles and the included side are congruent. 1. Classification: By Sides By Angles 2. Congruence Theorem: Bridge 5: K-Truss Given: Two angles and a non-included side are congruent. 1. Classification: By Sides By Angles 2. Congruence Theorem: Bridge 6: Bowstring Given: The central post is the perpendicular bisector of the base. 1. Classification: By Sides By Angles 2. Congruence Theorem:
Truss Tracker Answer KeyTruss Tracker | Answer Key Teacher reference for triangle classification and congruence theorem identification. Bridge 1: Warren Truss 1. Classification: By Sides Equilateral By Angles Acute (Equiangular) 2. Congruence Theorem: SSS (Side-Side-Side) Bridge 2: King Post 1. Classification: By Sides Isosceles By Angles Right 2. Congruence Theorem: SAS (Side-Angle-Side) Bridge 3: Pratt Truss 1. Classification: By Sides Scalene By Angles Right 2. Congruence Theorem: HL (Hypotenuse-Leg) Bridge 4: Howe Truss 1. Classification: By Sides Scalene By Angles Right 2. Congruence Theorem: ASA (Angle-Side-Angle) Bridge 5: K-Truss 1. Classification: By Sides Scalene By Angles Right 2. Congruence Theorem: AAS (Angle-Angle-Side) Bridge 6: Bowstring 1. Classification: By Sides Scalene By Angles Right 2. Congruence Theorem: SAS (Side-Angle-Side)
