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Contests
National and Regional Contests
India Contests
India Pre-Regional Mathematical Olympiad
2018 India PRMO
24
24
Part of
2018 India PRMO
Problems
(1)
2018 preRMO p24, triangles with integer angles, not similar, N/100 ?
Source:
8/8/2019
If
N
N
N
is the number of triangles of different shapes (i.e., not similar) whose angles are all integers (in degrees), what is
N
100
\frac{N}{100}
100
N
ā
?
geometry
combinatorics
Integers
angles