10 Publishing Myths: Insights Every Author Needs to Succeed

10 Publishing Myths: Insights Every Author Needs to Succeed

Matematika Volume sebuah tabung 6.930cm³,dan panjang jari jari alasnya 12cm.hitunglah luas permukaan tabung tersebut

Volume sebuah tabung 6.930cm³,dan panjang jari jari alasnya 12cm.hitunglah luas permukaan tabung tersebut

Jawaban:

V = πr²t

6.930 = 3,14.(12)² t

6.930 = 3,14.(144) t

6.930 = 452,16 t

t = 6.930/452,16

t = 15,3 cm

Lp= 2πr(r+t)

= 2.3,14(12).(12+15,3)

= 6,28.(12).(27,3)

= 2057,3 cm²

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