Mrs. Bruning observes several boys simply stuffing handouts into their backpacks. Based on her observation, she says, “Boys stuff handouts into their backpacks.” Mrs. Bruning has just made a(n) ______________________________ about the behavior of boys.

We proved that if overlapping segments have the same measure, then their non-overlapping parts have the same measure. So the underlined statement is a(n) ______________________________.

When you use deductive reasoning to write an argument that a statement is true, we call that argument a(n) ____________________.

Two rays start at the same point, and then head off in different--but not necessarily opposite--directions, they form a(n) ______________________________.

Segment SG and segment MT lie on the same line. So we can use the word ____________________ to describe them.

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“______________________________” is a fancy name for an if-then statement.

The part of a conditional statement following the “then” is referred to as the statement’s ______________________________.

The ______________________________ of the statement “If an object is a die, then it has six sides” is “If an object does not have six sides, then it is a not a die.”

The statement “If the corresponding angles formed are congruent, then the two lines cut by a transversal are parallel” is the ______________________________ of “If two lines cut by a transversal are parallel, then the corresponding angles formed are congruent.”

The triangle and pentagon shown below both lie in the plane defined by the screen you are viewing. We would describe them as being ________________________________________.

A bat would be a(n) ______________________________ for the statement “If an animal has wings, then it is a bird. That’s because a bat has wings, but it is not a bird.”

Any number that is two times an integer plus one is an odd number. Sixty-seven is two times the integer thirty-three plus one. Therefore sixty-seven is an odd number. This is an example of ______________________________.

The ________________________________________ below shows the relationship among the set of animals, the set of animals that are mammals, and the set of animals that lay eggs.

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We call a picture that shows the logical relationships among a number of sets a(n) ______________________________.

In the figure below, D lies in the ______________________________ of angle BAC .

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In the statement, “If an animal has a backbone, then the animal is a vertebrate,” the clause “animal has a backbone” is the statement’s ______________________________.

If you draw a segment from a point on one side of an angle to a point on the other side of the angle, the segment will pass through the angle’s ______________________________.

You create a conditional statement’s ____________________ when you negate its hypothesis and conclusion.

Points W, O, R and M all lie on the same line. The part of that line that starts at W and ends at R would be called a(n) ______________________________.

“________________________________________” is the word or phrase we use to refer to the part of the line pictured below that starts at point D and continues forever in the direction of point E.

An angle is defined by rays AC and AT. We call A the ______________________________ of the angle. Meow!

A statement that is so basic that we can all agree that it is true without proof is known as a(n) ______________________________.

The figures pictured below are ________________________________________. They are closed, plane figures composed of segments that intersect only at their endpoints.

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vertices

("vertices" is the plural of "vertex.")

Points W, F, S, U and Y are ________________________________________ of polygon WFSUY.

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In the diagram below, segment AC is a(n) ________________________________________ of pentagon ABCDE.

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Draw a kite shaped polygon on your paper somewhere. Notice that if you draw a segment connecting any two non-adjacent vertices that the segment only passes through the interior. We would classify the kite as a(n) ______________________________.

If you connect points O and Y on the figure below with a line segment, the segment will pass through the exterior of POLY. For that reason, we would classify POLY as a(n) ______________________________.

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Based on the marks made on the diagram below, pentagon ABCDE is both equilateral and ______________________________.

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In pentagon TIGER, TI = IG = GE = ER = RT. TIGER is a(n) ______________________________.

All 12 of a dodecagon’s sides are 10 centimeters long and each of its interior angles measures 150°. That makes it a(n) ________________________________________ dodecagon.

If you find the point that is the same distance from every vertex of a regular polygon, you have found the ______________________________ of that regular polygon.

In the figure below. If you were to draw ray FB and ray FA, the two rays would form a(n) ______________________________ of pentagon ABCDE.

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Draw a triangle somewhere on a piece of scratch paper. Now, draw a point on one vertex of the triangle and draw rays that start at that vertex and pass through the sides of the triangle that meet at that vertex. These rays form a(n) ________________________________________ of the polygon you drew.

Because adjacent angles HAR and RAY are supplementary, we would classify angle HAR as a(n) ________________________________________ of ARLEY.

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Trapezoids, parallelograms, rectangles, rhombuses, squares and kites are all examples of ________________________________________. That is, they are all four-sided polygons.

Based solely on the number of sides it has, ______________________________ is the name we would give to the polygon picture below:

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The figure below is a(n) ______________________________. It is a six-sided polygon.

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When we don’t know the number of sides of a polygon or when we are trying to prove a property that applies to a polygon regardless of the number of sides it has, we say that the polygon has n sides, and we refer to it as a(n) ______________________________.

A stop sign is a real-world example of a regular eight-sided polygon, which we call a regular ______________________________.

“Hepta” is a Greek prefix for “seven.” That’s why we call a seven sided polygon a(n) ______________________________.