Tolong dibantu no. 24 dan 25

24)
V limas = 1/3 x L alas x t
1000 = 1/3 x 20 x 10 x t
3000 = 200 t
t = 3000 : 200
t = 15
Jadi, tinggi limas = tinggi balok = 15 cm

V balok = p x l x t
V balok = 20 cm x 10 cm x 15 cm
V balok = 3000 cm^3

V balok di luar limas = V balok - V limas
= 3.000 cm^3 - 1.000 cm^3
= 2.000 cm^3

25)
V prisma = L alas x tinggi
960 cm^3 = L alas x 20 cm
L alas = 48 cm^2

L alas = 1/2 . d1 .  d2
48 = 1/2 . 2x . 3x
48 = 3x^2
x = akar 16
x = 4

Jadi panjang d2 = 3.4 = 12 cm