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Math Ch. 5 Vocabulary
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Gravity
Terms in this set (25)
alternate exterior angles
exterior angles that lie on the opposite sides of the transversal.
alternate interior angles
interior angles that lie on opposite sides of the transversal
converse
formed when parts of a theorem are changed
corresponding angles
angles that are in the same position on two parallel lines in relation to a transversal
deductive reasoning
a system of reasoning that uses facts, rules, definitions, or properties to reach logical conclusions
Distance formula
d = √[( x₂ - x₁)² + (y₂ - y₁)²]
equiangular
a polygon in which all of the angles are congruent
exterior angles
The four outer angles formed by two lines cut by the transversal
formal proof
a two-column proof containing statements and reasons
hypotenuse
the side opposite the right angle in a right triangle
inductive reasoning
reasoning that uses a number of specific examples to arrive at a plausible generalization or prediction.
informal proof
a paragraph proof
interior angles
the four inside angles formed by two lines cut by the transversal
legs
the two sides of a right triangle that form the right angle
paragraph proof
a paragraph that explains why a statement or conjecture is true
parallel lines
lines in the same plane that never intersect or cross
perpendicular lines
two lines that intersect to form right angles
polygon
a simple, closed figure formed by three or more line segments
proof
A logical argument that shows a statement is true.
Pythagorean Theorem
a²+b²=c²
regular polygon
A polygon that is equilateral and equianguilar
remote interior angles
the angles of a triangle that are not adjacent to a given exterior angle
theorem
a statement or conjecture that can be proven
triangle
a figure formed by three line segments that intersect only at their endpoints
two-column proof
A formal proof that contains statements and reasons organized in two columns
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