Geometry

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Across
  1. 4. Space inside of a 2-D shape
  2. 6. four-sided shape which has one pair of sides as parallel
  3. 7. Tallest point of a angle
Down
  1. 1. shape with four sides where opposite sides are parallel and equal in length
  2. 2. Bottom of a shape
  3. 3. How tall a object is. Measured straight up and down
  4. 5. Space inside a 3-D shape