Across
- 3. The point where two or more line segments or rays meet.
- 5. The sum of the lengths of all sides of a polygon.
- 6. A shape with no points
- 8. A quadrilateral with two pairs of adjacent congruent sides.
- 9. A flat surface of a three-dimensional polyhedron.
- 11. A polygon with four sides.
- 13. Branch of mathematics concerned with shapes
- 16. A triangle in which all three sides have the same length.
Down
- 1. Any straight line segment that passes through the centre of the circle
- 2. The point that divides a line segment into two equal parts.
- 4. A line that divides a line or an angle into two equivalent parts
- 7. A part of a line with two endpoints.
- 10. The space between two intersecting lines
- 12. The side of a right triangle opposite the right angle
- 14. The center of the inscribed circle in a triangle.
- 15. The distance from the center of a circle to any point on the circle.