Across
- 2. A solid object with two identical ends and flat sides. Has a cross section that is the same all along its length.
- 3. Lines that can go on forever, and never touch. Are included in shapes with at least one congruent side.
- 7. A triangle that has two sides of equal length. Sometimes it is specified as having two and only two sides of equal length.
- 11. A plane figure with at least three straight sides and angles, and typically five or more. A circle cannot be classified as a polygon because it has curves.
- 12. A quantity representing the power to which a given number or expression is to be raised. Usually expressed as a raised symbol beside the number or expression.
- 13. A line meeting another at a right angle or 90°. Means at a right angle.
- 14. One of the lines that make a flat shape. Or one of the surfaces that make a solid object.
- 15. The common endpoint of two or more rays or line segments. A corner or a point where lines meet.
- 17. A polygon with three edges and three vertices. It is one of the basic shapes in geometry.
- 20. Refers usually to an element of some set called a space. Is a primitive notion upon which the geometry is built.
- 21. An angle less than 90°, or to a shape involving angles less than 90°. It is the opposite of obtuse, which refers to an angle greater than 90°.
- 22. The number of unit squares that can be contained within it. The unit square is usually a standard unit
Down
- 1. The length between two points of a straight line segment that links them. The length of a point from a line of the shortest line segment from the point to the line.
- 4. Equal to 90 degrees. Makes up a square.
- 5. The branch of mathematics concerned with the properties and relations. Mostly of points, lines, surfaces, solids, and higher dimensional analogs.
- 6. A triangle with three unequal sides. One side can never be equal or congruent to another.
- 8. Sides or segments have the exact same length. Angles have the exact same measure.
- 9. When you measure each side. Add each side up and you find perimeter.
- 10. System of equations, which is a set of simultaneous equations in which the unknowns. Occurring as a result of an operation that is not linear.
- 14. A measure of the constant rate of change of a graph. A line goes through the graph that represents the slope.
- 16. The difference between the lowest and highest values. Also means the output values of a function.
- 18. A portion of a line which starts at a point. Goes off in a particular direction to infinity.
- 19. Has no curves and thickness. Extends in both directions without end.