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2022 Novosibirsk Oral Olympiad in Geometry
4
<B=? if <C = 3<A and AB=2 BC (2022 Novosibirsk Oral Geo Oly 8.4)
<B=? if <C = 3<A and AB=2 BC (2022 Novosibirsk Oral Geo Oly 8.4)
Source:
September 2, 2023
geometry
angles
Problem Statement
In triangle
A
B
C
ABC
A
BC
, angle
C
C
C
is three times the angle
A
A
A
, and side
A
B
AB
A
B
is twice the side
B
C
BC
BC
. What can be the angle
A
B
C
ABC
A
BC
?
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