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139. Trapetsiya yuzi — JAYDARIMOCK
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139. Trapetsiya yuzi
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1.
O'rtacha
Teng yonli trapetsiyaning perimetri 40 ga, unga ichki chizilgan aylananing radiusi 3 ga teng. Shu trapetsiyaning yuzini toping.
A)
120
B)
60
C)
30
D)
80
Javobni tekshirish
Yechim tahlili
Oldingi
Keyingi
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