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d2 = 30 cm
dit : Luas?
jwb : d1 × d2 : 2
45 × 30 : 2
1350:2
= 675 cm²
13. 5x + 1 = 16
5x = 16-1
5x = 15
x = 15:5
x = 3
Maaf kalau tulisannya ngga kebaca