Jawabanmu

2014-04-15T05:30:16+07:00
T Δ = √8²-4²=√64-16=√48

V limas
= 1/3 x √48 x 8 x 1/2 x 15
= √48 x 4 x 5
 = √48 x 20
= 4√3 x 20 = 80√3cm³