Question

Tinggi limas 24 cm , panjang rusuk alas 14 cm .
Hitunglah : volume limas
Volume prisma
Perbandingan volume limas dan volume prisma

Answer 1

*jika t limas = t prisma
*jika r limas = r prisma

diket :
rl = rp = 14 cm
tl = tp = 24 cm

ditanya :
a)Vl...?
b)Vp...?
c) Vl : Vp..?

jawab :
a)
Vl = (1/3)(r^2)(tl)
Vl = (1/3)(24)(14^2)
Vl = 8 × 196
Vl = 1568 cm^3

B)
Vp = (r^2)(tp)
Vp = (14^2)(24)
Vp = (196)(24)
Vp = 4704 cm^3

C)
Vl : Vp
= (1/3)(tl)(a) : (a)(tp)
= (1/3)(tl) : (tp)
= (1/3)(24) : (24)
= 8 : 24
= 1 : 3