an angle that is greater than 0 degrees and less than 90 degrees.
What is an acute angle?
100
two coplanar angles with a common side, a common vertex, and no common interior points.
What are adjacent angles?
100
when all angles in a triangle are congruent.
What is an equiangular triangle?
100
congruent sides of an isosceles triangle are its..
What are the legs of an isosceles triangle?
100
a parallelogram with four right angles.
What is a rectangle?
200
points and lines that are in the same plane.
What is coplanar?
200
two angles who sides form two pairs of opposite rays.
What are vertical angles?
200
a triangle with at least two congruent sides.
What is an isosceles triangle?
200
polygons that have corresponding sides congruent and corresponding angles congruent.
What is a congruent polygon?
200
a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent.
What is a kite?
300
a conclusion you reach using inductive reasoning.
What is a conjecture?
300
switches the hypothesis and the conclusion.
What is a converse?
300
a line that intersects two coplanar lines at two distinct points.
What is a transversal?
300
the longest side of a right triangle.
What is a hypotenuse?
300
a parallelogram with four congruent sides.
What is a rhombus?
400
A ray that divides an angle into two congruent coplanar angles.
What is an angle bisector?
400
When a conditional and its converse are true, you can combine them to form this.
What is a biconditional?
400
a polygon that has no diagonal with points outside the polygon.
What is a convex polygon?
400
two congruent sides of an isosceles triangle form a..
What is a vertex angle?
400
a quadrilateral with both pairs of opposite sides parallel.
What is a parallelogram?
500
Lines that are not parallel and do not intersect, also they are noncoplanar.
What are skew lines?
500
This law allows you to state a conclusion from two true conditional statements when the conclusion of one statement is the hypothesis of the other statement.
What is the Law of Syllogism?
500
a polygon that has at least one diagonal with points outside the polygon.
What is a concave polygon?
500
corresponding parts of congruent triangles are congruent stands for.
What is CPCTC?
500
quadrilateral with exactly one pair of parallel sides.