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Vocabulary
Angles
Postulates & Theorems
Logic
Miscellaneous
100
_____________ are lines that lie in the same plane.
What are coplanar lines?
100
The endpoint of the rays that form an angle is called its ___________.
What is vertex?
100
Two lines intersect at ________________.
What is a point?
100
____________ reasoning involves looking for patterns and making conjectures.
What is inductive?
100
An angle with a measure of 90 degrees is called a ____________ angle.
What is a right angle?
200
Points that lie along the same line are known as ______________ points.
What is collinear?
200
A(n) ______________ consists of two _______ that have the same endpoint.
What is angle and rays?
200
Two planes intersect at ______________.
What is a line?
200
_______________ reasoning uses facts, definitions, accepted properties and the laws of logic to make logical arguments.
What is deductive?
200
An unproven statement that is based on a pattern or observation is called a ____________.
What is a conjecture?
300
A ________ AB consists of an endpoint A and all of the points on line AB that lie on the same side of A as B.
What is a ray?
300
An angle that has a measure between 0 degrees and 90 degrees is called a(n) ______________ angle.
What is an acute angle?
300
Name the postulate that states "If B is between A and C, then AC=AB + BC.
What is the segment addition postulate?
300
Using the Law of Detachment, draw a conclusion based on the following: If you wash the cotton t-shirt in hot water, then it will shrink. You wash the cotton t-shirt in hot water.
What is "the cotton t-shirt shrinks"?
300
If angle A and angle B are complementary, and angle A has a measure of 55 degrees, then angle B has a measure of __________ degrees.
What is 35 degrees?
400
Segments that have the same length are called _______________.
What are congruent segments?
400
An angle that has a measure between 90 degrees and 180 degrees is called a(n) ____________ angle.
What is an obtuse angle?
400
What postulate is described by "If P is in the interior of angle RST, then the measure of angle RST is equal to the measure of angle RSP and the measure of angle PST.
What is "the angle addition postulate"?
400
The "then" part of an if-then statement is usually called the ______________.
What is the conclusion?
400
Something that is two dimensional that is like a floor or wall but extends without end.
What is a plane?
500
A true statement that follows from other true statements is called a _______________.
What is a theorem?
500
An angle with a measure of 180 degrees is called a _____________ angle.
What is a straight angle?
500
If angle 7 and angle 8 are supplementary, and angle 8 and angle 9 are supplementary, name a pair of congruent angles and name the theorem used.
What are angle 7 and angle 9? By the Congruent Supplements Theorem.
500
Use the Law of Syllogism to draw a conclusion based on the following if-then statements: If the daily high temp. is 32 degrees or less, then the water in the pipe is frozen. If the water in the pipe is frozen, then the pipe will break. Therefore, if the daily high temp. is 32 degrees or less, then ___________________.
What is "the pipe will break."
500
If angle A and angle B form a linear pair, and angle A has a measure of 6x degrees, and angle B has a measure of 12x degrees, the value of x would be ____________.
What is x=10?