nature

3. A number expressed in the base-10 numerical system, usually with a decimal point.
4. A perfectly round shape with all points equidistant from the center.
6. A mathematical operation that combines two or more numbers to find the product.
8. The space between two intersecting lines or surfaces, measured in degrees.
9. A four-sided polygon with equal sides and four right angles.
12. A symbol or word used to represent a quantity or position in a sequence.
14. A mathematical operation that combines two or more numbers to find the total.
15. A mathematical operation that finds the difference between two numbers.
16. The branch of mathematics that deals with the properties and relationships of points, lines, shapes, and space.

1. A polygon with three sides and three angles.
2. A repeating sequence of numbers, shapes, or objects.
5. A four-sided polygon with opposite sides that are equal and four right angles.
7. The process of finding the size, length, or amount of something using standard units.
10. A statement that shows the equality of two expressions.
11. A mathematical operation that separates a quantity into equal parts or groups.
13. A number that represents a part of a whole or a division of a quantity.