VISUAL DICTIONARY XVI Flashcards
What is a branch of mathematics that deals with the properties, measurement, and relationships of points, lines, angles, and solids deduced from their defining conditions by means of certain assumed properties of space?
GEOMETRY
What is a dimensionless geometric element that has no property but location, such as the intersection of two lines?
POINT
What is the axis along which ordinates or y-values are measured in a Cartesian coordinate system?
Y-AXIS
AXIS OF ORDINATES
What is a coordinate determined by measuring parallel to the z-axis?
Z-COORDINATE
What is the axis along which values of z are measured in a three-dimensional Cartesian coordinate system?
Z-AXIS
What is the axis along which abscissas or x-values are measured in a Cartesian coordinate system?
X-AXIS
AXIS OF ABSCISSAS
What is a coordinate determined by measuring parallel to the x-axis?
ABSCISSA
X-COORDINATE
what is any set of numbers that serve to specify the location of a point on a line, surface, or in space by reference to a fixed figure or system of lines?
COORDINATE
What is any of the coordinates for locating a point on a plane by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point?
CARTESIAN COORDINATE
What is a coordinate determined by measuring parallel to the y-axis?
ORDINATE
Y-COORDINATE
What is a straight line segment that joins a variable point to the fixed origin of a polar coordinate system?
RADIUS VECTOR
What is the angle formed by the polar axis and a radius vector in a polar coordinate system?
POLAR ANGLE
What is the reference axis from which the polar angle is measured in a polar coordinate system?
POLAR AXIS
what is a system for locating a point on a plane by its radius vector and polar angle?
POLAR COORDINATE SYSTEM
What is a Cartesian coordinate system in which the axes or coordinate planes are perpendicular?
RECTANGULAR COORDINATE SYSTEM
What is a geometric element generated by a moving point and having extension without breadth or thickness?
LINE
What is the space between two lines diverging from a common point, or within two planes diverging from a common line, the figure so formed?
ANGLE
What is the point at which the sides of an angle intersect?
VERTEX
What is an angle of 90° formed by the perpendicular intersection of two straight lines?
RIGHT ANGLE
What is an angle less than 90°?
ACUTE ANGLE
what is an angle greater than 90° but less than 180°?
OBTUSE ANGLE
what is the amount of rotation needed to bring one line or plane into coincidence with another, measured in radians or in degrees, minutes, and seconds?
ANGLE
What is a unit of angular measure equal to the central angle subtending an arc equal in length to the radius?
RADIAN
what is a unit of angular measure, equal to 1/360th of a complete angle or turn, or of the circumference of a circle?
DEGREE
What is the both part of a degree of angular measure?
MINUTE
What is the 60th part of a minute of angular measure?
SECOND
What is the extent or distance upward from a given level to a fixed point?
HEIGHT
What is the line or surface forming the part of a geometric figure that is most nearly horizontal or on which it is supposed to stand, from which an altitude can be constructed?
BASE
What is the perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface?
ALTITUDE
What do you call the branch of geometry that deals with plane figures?
PLANE GEOMETRY
What do you call a surface generated by a straight line moving at a constant velocity with respect to a fixed point, such that a straight line joining any two of its points lies wholly in the surface?
PLANE
What do you call a combination of geometric elements disposed in a particular form or shape?
FIGURE
What is a close plane figure having three or more straight sides?
POLYGON
What do you call a polygon having four sides and four angles?
QUADRILATERAL
What do you call a polygon having three sides and three angles?
TRIANGLE
What do you call reentering or pointing inward, such as an interior angle of a polygon that is greater than 180°?
REENTRANT
What is an outward projecting angle or part?
SALIENT
What is the angle formed between any side of a polygon and an extended adjacent side?
EXTERIOR ANGLE
What is the angle formed inside a polygon between any two adjacent sides?
INTERIOR ANGLE
What is a triangle having two sides of equal length?
ISOSCELES TRIANGLE
What is a triangle having three unequal sides?
SCALENE
Refers to forming, formed by, or characterized by straight lines
RECTILINEAR
Refers to having edges, surfaces, or faces that meet at right angles?
RECTANGULAR
What is an oblique line or surface as one formed by cutting off the corner of a square or cube?
CANT
What is the branch of mathematics that deals with the properties of triangles and trigonometric functions and of their applications?
TRIGONOMETRY
What is a function of an angle, as sine or cosine, expressed as the ratio of the sides of a right triangle?
TRIGONOMETRIC FUNCTION
What is the trigonometric function defined as the ratio of the side opposite a given angle to the hypotenuse?
SINE
What is the trigonometric function defined as the ratio of the side adjacent to a given angle to the hypotenuse?
COSINE
What is the trigonometric function defined as the ratio of the side opposite a given angle to the side adjacent to the angle?
TANGENT
What is the trigonometric function defined as ratio of the hypotenuse to the side adjacent to a given angle?
SECANT
What is the trigonometric function defined as the ratio of the hypotenuse to the side opposite a given angle?
COSECANT
What is the trigonometric function defined as the ratio of the side adjacent to a given angle to the side opposite the angle?
COTANGENT
What is a triangle having a right angle?
RIGHT TRIANGLE
What is the side of a right triangle that is opposite the right angle?
HYPOTENUSE
What is the theorem that states that the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides?
PYTHAGOREAN THEOREM
What is a quadrilateral having both pairs of opposite sides parallel to each other?
PARALLELOGRAM
What is a quadrilateral having only two sides parallel?
TRAPEZOID
What is a quadrilateral having no two sides parallel?
TRAPEZIUM
What is a perpendicular from the center of a regular polygon to one of its size?
APOTHEM
What is a close plane curve every point of which is equidistant from a fixed point within the curve?
CIRCLE
What is any part of the circumference of a circle?
ARC
What is a straight line extending from the center of a circle or sphere to the circumference or bonding surface?
RADIUS