MATH

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Across
  1. 3. slope or gradient of a line describes its steepness, incline, or grade
  2. 4. variable is a value that may change within the scope of a given problem or set of operations
  3. 7. the reason some object or process occurred in a system that evolved through a process of selection
Down
  1. 1. angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint
  2. 2. the quantity of three-dimensional space enclosed by some closed boundary, for example
  3. 5. one of the broad parts of mathematics, together with number theory, geometry and analysis
  4. 6. a branch of mathematics concerned with questions of shape, size