Mathematics
Junior High

この計算の中で間違えているところってありますか?
教えて下さい!

3cm 5cm 3cm S == x3x4 = (3) 10g 6 = 6x3 = 18cm ² V=3x4÷2= 6 4cm 3x (3+4+5)= 36. 6x2+36 = 48cm ²³ 3

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