Dik Lp balok adalah 94cm² ,p = 5cm dan l = 4cm, berapa t balok tersebut
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x + 150 ÷ 2 = 80
x = ?
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x + 150 ÷ 2 = 80
x = ?
Gemitir
Lp balok = 2pl + 2pt + 2lt94 = 2.5.4 + 2.5.x + 2.4.x94 = 40 + 10x + 8x94 = 40 + 18x18x = 94 - 4018x = 54x = 54/18x = 3 Tinggi balok = 3 cmx + 150 ÷ 2 = 80x + 75 = 80x = 80 - 75x = 5Nilai x = 5
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Thanks 2