D
B
B
ABCD dörtgen
(DF ve (BE
açıortay
С
E
1300
m(DCB) = 130°
m(BAD) 84°
(
F
2a
m(BEF)= a
2a \ m(ADE) =B
8
849
А
A) 19
B) 21
C) 23
D) 25
E) 27
10.​


DBBABCD DörtgenDF Ve BEaçıortayСE1300mDCB 130mBAD 84F2amBEF A2a MADE B8849АA 19B 21C 23D 25E 2710 class=