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PythagoreanTheorem
Problem - 3306
Let
C
D
be the altitude in right
△
A
B
C
from the right angle
C
. If inradii of
△
A
B
C
,
△
A
C
D
, and
△
B
C
D
be
r
1
,
r
2
, and
r
3
, respectively, show that
r
1
+
r
2
+
r
3
=
C
D
report an error