90 degress and 180 degress.
Obtuse triangle- a triangle that has one obtude angle.
Opposites-
a pair of numbers such as -4 and 4.
Origin- the graph of zero on a number line
or in a rectangular coordinate plane.
Outcome- the result of an event.
Parallel lines-lines in the same plane that do not intersect.
Percent- a ratio of a number to 100, shown by the symbol %.
Percentage- the number that results from taking a perfect from another number.
Perimeter-the distance around a plane figure.
Perpendicular lines- the two lines that intersect
to form four right angles.
Plane- a flat surface extending
infinitely in all directions.
Point- the simplest figure in geometry,
representing an exact location.
Polygon-a closed plane figure made up of line segments.
Prime number-a who,e number greater than 1 that
has only two whole number factors, itself and 1.
Radius- A line segment hoing any point on a
circle or sphere to the center.
Also the length of that segment.
Ratio- an indicated quotient of two numbers.
Rectangle-a quadrilateral with four rigth angles.
Rhombus- a parralleogram in which all sides are congruent.
Right angle-An angle with measure 90 degress.
Right triangle- a trigle with a right angle.
Stem-and-leaf- plot-a data display that lists the last digits
("leaves") of the data values to the right of the digits ("stems").
Triangle-a polygon with three sides.
Variable-a symbol used to represent one or more numbers.
Volume -a measure of the space occupied by a solid.
X-Axis-the horizontal number line on a coordinate plane.
Y- Axis-the vertical number line on a coordinate plane
