2.
α
B
С
sc
H
2.
ABC üçgen
[AB] 1 [AC], [AH] 1 [BC]
m(ABC) = = a, IBC= 2 cm
Buna göre, IAH uzunluğunun a türünden eşiti aşa-
ğıdakilerden hangisidir?
A) sina.cosa
B) 2sina cosa
2sina
C) 4sina cosa
D)
cosa
2cosa
E)
sina
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