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### 9 Cards in this Set

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 What is "tessellation?" A repeating pattern of figures that completely covers a plane without gaps or overlaps. What is a triangle? A figure formed by three line segments that connect three noncollinear points. What is a scalene triangle? No two of its sides are congruent. What is an isosceles triangle? At least two of its sides are congurent. What is an equilateral triangle? All of its sides are congurent. What is an acute angle? All of its angles are acute. What is an obtuse angle? It has one obtuse angle. What is a right angle? It has one right angle. What is an equiangular triangle? All of its angles are the same measure.