Math Vocabulary 12 Flashcards
(22 cards)
Polygon
A closed figure made of line segments that do not cross each other.
Triangle
A polygon with three sides and three angles.
Quadrilateral
A polygon with four sides and four corners
Pentagon
A polygon with five sides.
Hexagon
A polygon with six sides and six angles.
Octagon
A polygon with eight sides.
Congruent
Having equal length sides.
Acute angle
Angle with a degrees between 0-90.
Right angle
A angle that in 90 degrees.
Obtuse angle
A angle between 90-180 degrees.
Equilateral triangle
A triangle with three congruent sides.
Scalene triangle
A triangle with no congruent sides.
Isosceles triangle
A triangle with at least two congruent sides.
Trapezoid
A quadrilateral with one pair of parallel sides.
Parallelogram
A quadrilateral with four sides in which each pair of opposite sides are parallel and congruent.
Rectangle
A quadrilateral with four right angles; opposite sides are equal and parallel.
Rhombus
A parallelogram with four congruent sides.
Square
A rectangle with four congruent sides.
Base
One of the two parallel congruent faces in a prism.
Unit cube
A cube with the side length of one unit.
Cubic unit
A unit for measuring volume, such as a cubic inch or a cubic centimeter
Volume
The amount of space inside a three-dimensional figure.
