mathematics Flashcards
refers to any equality in measure in any 2 geometrical object
congruence
when 2 angles have same measures
congruent angles
if 2 segments have same lenghts
congruent object segments
𝑨𝑩≅𝑨𝑩
reflective
If ∠𝟏≅∠𝟐, 𝒕𝒉𝒆𝒏 ∠𝟐 ≅∠𝟏
symmetric
If 𝑨𝑩≅𝑪𝑫 𝒂𝒏𝒅 𝑪𝑫≅𝑬𝑭, 𝒕𝒉𝒆𝒏 𝑨𝑩 ≅𝑬𝑭
transitive
consists of list of statements, and the reasons why those statements are true
2 column proof
uses logic and accepted statements
deductive reasoning
a convincing demonstation that a statement is mathematically true
proof
what theorem is thsi?
𝑨𝒏𝒈𝒍𝒆𝒔 𝒔𝒖𝒑𝒑𝒍𝒆𝒎𝒆𝒏𝒕𝒂𝒓𝒚 𝒕𝒐 𝒕𝒉𝒆 𝒔𝒂𝒎𝒆
𝒂𝒏𝒈𝒍𝒆 𝒐𝒓 𝒕𝒐 𝒄𝒐𝒏𝒈𝒓𝒖𝒆𝒏𝒕 𝒂𝒏𝒈𝒍𝒆𝒔
𝒂𝒓𝒆 𝒄𝒐𝒏𝒈𝒓𝒖𝒆𝒏𝒕.
theorem 5.3
sum of their measures is 180
supplumentary
sum of their measures is 90
complementary
2 angles whose sides from opposite rays
vertical angles
congruent
A point B is between two other points A and C if all three points are collinear and AB +BC = AC.
betweeness of points
any 2 lines in a plane may be ??
parallel or intersecting