Tools of Geometry
Reasoning and Proof
Parallel and Perpendicular Lines
Congruent Triangles
Relationships Within Triangles
100
Figures that are in the same plane are ______.
What is coplanar.
100
In a conditional statement, the part that directly follows "if" is the ______.
What is hypothesis.
100
In a triangle, an angle is right, obtuse, or ______.
What is acute.
100
The two congruent sides of an isosceles triangle form the ______.
What is vertex angle.
100
A ______ is a segment whose endpoints are a vertex and the midpoint of the side opposite the vertex.
What is median of a triangle.
200
Two segments with the same length are ______.
What is congruent.
200
"If
What is Transitive.
200
When two coplanar lines are cut by a transversal, two angles that are in similar positions on the same side of the transversal are called ______.
What is corresponding angles.
200
The side opposite the right angle of a right triangle is the ______.
What is hypotenuse.
200
If T is a point on the perpendicular bisector of line FG, TF=TG because of the ______.
What is Perpendicular Bisector Theorem.
300
A(n) ______ is a ray that divides an angle into two congruent angles.
What is angle bisector.
300
When a conditional and its converse are true, they may be written as a single true statement called a ______.
What is biconditional.
300
A polygon is ______ if no diagonal contains points outside the polygon.
What is convex.
300
A ______ to a theorem is a statement that follows immediately from the theorem.
What is corollary.
300
To write an ______, you start by assuming that the opposite of what you want to prove is ture.
What is indirect proof.
400
A(n) ______ is an accepted statement of fact.
What is postulate or axiom.
400
The ______ of a conditional switches the hypothesis and the conclusion.
What is converse.
400
A(n) ______ polygon is both equiangular and equilateral.
What is regular.
400
______ have congruent corresponding parts.
What is Congruent polygons.
400
The ______ of a triangle is the point of concurrency of the angle bisectors of the triangle.
What is incenter.
500
A(n) ______ is an angle whose measure is between 90 and 180.
What is obtuse angle.
500
If the sum of the measures of two angles is 180, then the angles are ______.
What is supplementary.
500
From the ______ form of a linear equation, you can easily read the value of the slope and the value of the y-intercept.
What is slope-interccept.
500
The side of an isosceles triangle that is not a leg is called the ______.
What is base.
500
A point where three lines intersect is a ______.
What is point of concurrency.
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