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138. Trapetsiya va uning xossalari — JAYDARIMOCK
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138. Trapetsiya va uning xossalari
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1.
O'rtacha
ABCD trapetsiyaning
A
B
va
C
D
asoslari mos ravishda 15 va 4 ga teng. Agar
A
burchakning bissektrisasi
B
C
yon tomonga perpendikulyar bo'lsa,
A
D
yon tomon uzunligini toping.
A)
9
B)
13
C)
11
D)
8
Javobni tekshirish
Yechim tahlili
Oldingi
Keyingi
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