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Usually, we reserve congruence for two-dimensional figures, but three-dimensional figures, like our chess pieces, can be congruent, too. Think of all the pawns on a chessboard. They are all congruent. To summarize, congruent figures are identical in size and shape; the side lengths and angles are the same. How doRead More →

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Opposite angles are also congruent angles, meaning they are equal or have the same measurement. Two crossing lines actually create two sets of opposite angles that, when the measures of their angles are added all together, will equal 360 degrees and make a circle. How do you know if oppositeRead More →