JAWAB BESERTA CARANYA PLISSS!!!
YANG JAGO MATEMATIKA AYO JANGAN NGASAL!!!
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
[answer.2.content]