18 terms

# geometry 1.2

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Inductive reasoning
reach a conclusion based on specific examples
conjecture
the conclusion of the inductive reasoning reasoning
Deductive reasoning
is a process of reasoning logically from given facts to a conclusion
fact ex-*5
definitions, postulates, theorum, axions and properties
what two things can you measure, what tool, and what unit
line, ruler, metric-standard / angle, protractor, degrees
Acute
an angle whoes measure is grater than 0 and less than 90
0 < 2x +3 < (90/180)
acute/streight ineaqualtiy
Right angle
an angle that measures exactly 90 degrees
2x +3 = 90
right equation
obtuse angle
an angle whoes measre is grater than 90 and less then 180
90< 2x +3 < 180
obtuse inequality
1 degree is equal to _mins
60'
1' is equal to __ seconds
60''
proportions are used to solve a degree problum; PROPORTION
to ration/fractions set rquall to each other where the product of the means equalls the product of extreams
example both ways to set up the proportion
ex/mean = mean/ex ...or... mean x mean = expl x expl
congruency
the two (segments / angles / triangles) are congruent if they have the same measure ( length / degree )
segment + positive
cobining two segments AB + BC = AC
angle+ positive
putting two angle togeather to form 1, A1 + A2 = A3