Across
- 3. a solid geometric figure with straight parallel sides and a circular or oval cross section
- 6. a symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares
- 8. a four-sided plane rectilinear figure with opposite sides parallel.
- 13. a quadrilateral with only one pair of parallel sides
- 15. a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
Down
- 1. a plane figure with three straight sides and three angles.
- 2. a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center).
- 4. a plane figure with four equal straight sides and four right angles.
- 5. a round solid figure, or its surface, with every point on its surface equidistant from its center
- 7. a solid or hollow object which tapers from a circular or roughly circular base to a point
- 9. Triangle, a type of triangle in which all the three internal angles of the triangle are acute
- 10. having a rounded and slightly elongated outline or shape like that of an egg
- 11. parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides
- 12. branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
- 14. Triangle, A triangle with a 90 degree angle