Find the angles

∠1 = ° ∠2 = °
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Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

Which of the following is a justification used while proving the similarity of triangles lom and mon