CROSSWORD IN MATH

2. An exact location. It has no size, only position.
4. A 3-sided polygon (a flat shape with straight sides).
5. An obtuse angle is one which is more than 90° but less than 180°.
6. A ratio shows the relative sizes of two or more values.
8. The longest side of a right triangle. The side opposite the right angle.
9. A triangle that has a right angle (90°)
12. A symbol for a number we don't know yet. It is usually a letter like x or y.
13. A pair of numbers used to locate a point on a coordinate plane is called an ordered pair.An ordered pair is written in the form (x, y) where x is the x-coordinate and y is the y-coordinate.
14. The Father of Geometry.
16. A 2-dimensional shape made by drawing a curve that is always the same distance from a center.
17. The line on a graph that runs horizontally (left-right) through zero.
18. Root The square root of a number is a value that, when multiplied by itself, gives the number.

1. An expression that can have constants, variables and exponents, but no division by a variable.
2. In a right angled triangle the square of the hypotenuse is equal to the sum of the squares of the other two sides.
3. An equation where the highest exponent of the variable (usually "x") is a square (2).It is usually written ax2+bx+c = 0.
7. Two integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line.
10. f -1(x) is said to be the inverse of f(x) if f(f -1(x)) = f -1(f(x)) = x. It is obtained by interchanging the variables x and y of the function.
11. A circle is the length of the line through the center and touching two points on its edge.
13. The starting point.On a number line it is 0.
15. The line on a graph that runs vertically (up-down) through zero.