Jawabanmu

2014-07-15T16:33:41+07:00
V= \frac{1}{3} x La x t
48000= \frac{1}{3} x  s^{2} x t
48000= \frac{1}{3} x ( 60^{2} ) x t
48000= \frac{1}{3} x 3600 x t
48000=1200 x t
t = 48000 : 1200
t = 40 m

tinggi segitiga =  \sqrt{ 30^{2} +  40^{2} } =  \sqrt{900 + 1600} =  \sqrt{2500} = 50 m