1. PYTHAGOREAN THEOREM
VOCABULARY

2. PYTHAGORAS
Greek philosopher and mathematician who proved the Pythagorean theorem; considered to be the first true mathematician (circa BC)

3. an idea accepted as a demonstrable truth
THEOREM
an idea accepted as a demonstrable truth

4. mathematical statement that two expressions are the same
EQUATION
 mathematical statement that two expressions are the same

5. a triangle with one right angle
RIGHT TRIANGLE
a triangle with one right angle

6. the side of a right triangle opposite the right angle
HYPOTENUSE
the side of a right triangle opposite the right angle

7. the 90 degree angle between two perpendicular lines
RIGHT ANGLE
the 90 degree angle between two perpendicular lines

8. LEGS
Supporting segments of a right triangle; shorter segments that are adjacent to the 90° angle

9. Pythagorean triple
a set of three integers a, b, c which form the sides of a right angled triangle

10. the product of a number multiplied by itself
square
the product of a number multiplied by itself

11. a value that, when multiplied by itself, gives the number
Square root
a value that, when multiplied by itself, gives the number

12. The result of adding two or more numbers
sum
The result of adding two or more numbers

13. difference
The result of subtracting one number from another

14. vertical
at right angles to a horizontal plane; in a direction, or having an alignment, such that the top is directly above the bottom

15. horizontal
parallel to the plane of the horizon; at right angles to the vertical

16. Coordinate plane
The plane determined by a horizontal number line, called the x-axis, and a vertical number line, called the y-axis, intersecting at a point called the origin. Each point in the coordinate plane can be specified by an ordered pair of numbers

17. an amount of space between two things
distance
an amount of space between two things