ifodani soddalashtiring 3x+5x-2x, 10x, 6x, 8x, 5x, Qo'shni burchaklardan biri 40 gradusga teng ikkinchi burchagini toping ., 100, 101, 120, 99, Tenglamani yeching x-12=25, x=13, x=2,5, x=22, x=27, Uchburchakning ikki burchagi 30 va 70 gradus bo'lsa uchinchi burchagini toping., 80, 100, 101, 180, Agar a=4 va b=5 bo'lsa 2a+3b ning qiymatini toping, 14, 23, 18, 20, Qavslani oching va soddalashtiring 4(x-2)+3x, 7x-8, 7x-2, x-8, 7x+8, Teng yonli uchburchakning perimetri 20sm, asosi esa 6sm.Yon tomonini toping., 14sm, 10sm, 7sm, 8sm, Tenglamani yeching 5x-10=2x+8, 6, 2, 18, 9, Ikki to'g'ri chiziq kesishishidan hosil bo'lgan vertikal burchakning yig'indisi 100 gradus bo'lsa. Bu burchakni toping., 100 va 110, 50 va 50, 80 va 20, 90 va 10, 10Uchburchakning burchaklari 2:3:4 nisbatda. Eng katta burchagini toping., 20, 60, 180, 80.

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