Pythagorean theorem

4. the measurement or extent of something from side to side
5. Refers to the space inside the boundary or perimeter of a closed shape
6. the action of separating something into parts or the process of being separated
7. Two shorter sides of the triangle
9. A statement that has been proved to be true using known operations and facts.
11. a unit of linear measure equal to one twelfth of a foot (2.54 cm)
14. the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of a body
15. a plane figure with three straight sides and three angles
16. the process or skill of taking one number or amount away from another multiplication, the process of combining matrices, vectors, or other quantities under specific rules to obtain their product.
17. forming a necessary base or core; of central importance

1. the longest side of a right triangle, opposite the right angle.
2. a theorem attributed to Pythagoras that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.
3. the relative extent of something; a thing's overall dimensions or magnitude; how big something is
5. Addition is a way of combining things and counting them together as one large group.
8. mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign.
10. a device that measures and records the quantity, degree, or rate of something
12. a plane figure with four equal straight sides and four right angles
13. the way in which two or more concepts, objects, or people are connected; a thing's effect on or relevance to another