Bridge on the eastern edge of Vermont dates from the mid 1800s The sides of...
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Bridge on the eastern edge of Vermont dates from the mid 1800s The sides of the span are supported by a Haupt truss making it the only wooden bridge of its kind in Vermont and one of only three such bridges in the United States For Problems 1 5 use the graph 1 The design of a Haupt truss is based on parallelograms The graph shows two parallelograms in the truss Prove that figure A is a parallelogram by showing that its opposite sides are congruent 2 Each acute angle of the parallelogram measures 63 What is the measure of each obtuse angle Hint Opposite angles of a parallelogram are congruent 19dmyn munich 3 Parallelogram A is transformed to make part of the pattern of the truss Describe the transformation that moves parallelogram A to parallelogram B 4 To complete a section of the truss the set of parallelograms shown in the figure is reflected across the y axis Draw the completed section 5 Describe any symmetry in the completed section of the truss AY 4 2 A 2 0 226 B 2 4 Thetford 6 8 Was
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