Area and Polygon

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Across
  1. 4. The two perpendicular lines of a coordinate plane that intersect at the origin. singular: axis.
  2. 6. Half of the product of its two diagonals.
  3. 7. The x- and y-axes divide the coordinate plane into four regions. Each region is called a quadrant.
  4. 10. Half the product of its base b and its height h.
  5. 11. A two-dimensional pattern of shapes that can be folded into a three-dimensional figure.
  6. 12. Plane formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.
Down
  1. 1. Half its height multiplied by the sum of the lengths of its two bases.
  2. 2. The product of its base b and its height h.
  3. 3. A composite figure is a figure that is composed of basic shapes.
  4. 5. A three-dimensional figure is the sum of the areas of its faces.
  5. 8. A three-dimensional figure whose base is a polygon and whose other faces are triangles that meet at a point.
  6. 9. a three-dimensional figure with two identical and parallel bases that are polygons.