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Austria Contests
Austrian MO Beginners' Competition
2004 Austria Beginners' Competition
4
4
Part of
2004 Austria Beginners' Competition
Problems
(1)
rhombus ABCD construction given circumradii of ABC, BCD
Source: 2004 Austria Beginners' Competition p4
10/4/2022
Of a rhombus
A
B
C
D
ABCD
A
BC
D
we know the circumradius
R
R
R
of
Δ
A
B
C
\Delta ABC
Δ
A
BC
and
r
r
r
of
Δ
B
C
D
\Delta BCD
Δ
BC
D
. Construct the rhombus.
geometry
rhombus
construction