Across
- 1. "a three-dimensional geometric shape with a polygon as its base and the lateral surfaces as triangles that meet at a common vertex"
- 4. "the amount of space in a certain 3D object"
- 6. "an angle that is exactly equal to 90 degrees (or π/2) in measure."
- 8. "the total space taken up by a flat (2-D) surface or shape of an object"
- 11. "a straight line that makes the right angle (90 degrees) with the other line"
- 13. "a term used to describe what a 3D shape would look like if it was opened out and laid flat"
- 15. "a polygon that is direct equiangular (all angles are equal in measure) and equilateral (all sides have the same length)"
Down
- 2. "a triangle that has two equal sides"
- 3. "a triangle in which all three sides are in different lengths, and all three angles are of different measures"
- 5. "a pair of numbers which are used to determine the position of a point or a shape in a 2-dimensional plane"
- 7. "the amount of space covering the outside of a three-dimensional shape"
- 9. "a three-dimensional object with parallel straight sides and a top and bottom base that are the same polygonal shape"
- 10. "measures the total length around the outside of a shape"
- 12. "a point where two or more edges meet"
- 14. "a closed figure made up of line segments (not curves) in a two-dimensional plane"