GEOMETRY

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Across
  1. 2. A ________ is a closed shape which has three or more straight edges.
  2. 3. A ________ is a line with one end point.
Down
  1. 1. To simplify the algebraic expressions we use____ rule.
  2. 2. In algebra a value that can be changed is called______.
  3. 3. An angle which is greater than 90 , is called an ___ angle.