JAWAB BESERTA CARANYA PLISSS!!!YANG JAGO MATEMATIKA AYO JANGAN NGASAL!!!​​

Jawaban:

1). d = 20 cm

r = 20 : 2 = 10 cm

V = 600 π cm³

t = ???

V = πr²t

600π = π.(10)²t

600 = 100 t

t = 600/100

t = 6 cm

2).r = 5cm

L =120πcm²

t =???

L = 2πr(r+t)

120π =2π.(5).(5+t)

120 = 2.(5).(5)t

120 = 50 t

t = 120/50

t = 2,4cm

3). V = 224π cm³

d= 8 cm

r = 8 :2 = 4 cm

t = ????

V = πr²t

224π = π.(4)²t

224 = 16 t

t = 224/16

t =14 cm