Math 218 Study Set with Questions and Answers
point ANSWER an idealized version of a dot, having no shape or size
line ANSWER an infinitely long, stretched string that has no beginning or end. it has not thicknesss
plane ANSWER an infinite flat piece of paper that has not beginning or end,...
Math 218 Study Set with Questions and
Answers
point ANSWER an idealized version of a dot, having no shape or size
line ANSWER an infinitely long, stretched string that has no beginning or end. it has not
thicknesss
plane ANSWER an infinite flat piece of paper that has not beginning or end, it has not
thickness
ray ANSWER a part of a line lying on one side of a point on the line. you can think of this as
having a beginning, but no end
endpoints ANSWER appear on the ends of a line segment
line segment ANSWER a part of a line that lies in-between two points on a line
angle ANSWER a representation of an amount of rotation around a fixed point (a turn) and a
way to describe how two rays (or lines, line segments, or even planes) meet
congruent ANSWER when two angles represent the same amount of rotation, they are said to
be this
degrees ANSWER a common method to measure an angle
acute angles ANSWER angles that are less than 90 degrees
, obtuse angles ANSWER angles that are more than 90 degrees
straight angles ANSWER angles are formed by a straight line
protractor ANSWER a measuring device designed to standardized angle measurement
perpendicular ANSWER an intersection of two lines on a plane that results in forming 90
degree angles
parallel ANSWER two lines on a plane that never intersect (even drawn out infinitely far)
supplementary angles ANSWER angles that add to 180 degrees
complementary angles ANSWER angles that add to 90 degrees
postulate or axiom ANSWER a mathematical statement that is considered foundational and is
simply assumed to be true
theorem ANSWER a mathematical statement that has been proven to be true by a logical line
of reasoning that is based on previous proven theorems and on postulates
proof ANSWER a logical line of reasoning to conclude a result
opposite angles (or vertical angles) ANSWER angles that are opposite each other
transversal ANSWER a line that crosses two lines that are on a plane
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