tolong jawabannya kak
Luas permukaan :
c² = a² + b²
c = √(12² + 16²) = √400 = 20 cm
L alas = 1/2. 12. 16 = 96 cm²
Lp prisma = 2. L alas + L selimut
Lp prisma = 2. 96 + 12. 24 + 16. 24 + 20. 24
Lp prisma = 192 + 288 + 384 + 480
Lp prisma = 1344 cm²
Lp balok = 2. (p. l + l. t + p. t)
Lp balok = 2. (18. 16 + 16. 20 + 18. 20)
Lp balok = 2. (288 + 320 + 360)
Lp balok = 2. (968)
Lp balok = 1936 cm²
Lp = Lp prisma - 2. L alas + Lp balok
Lp = 1344 - 2. 96 + 1936
Lp = 1344 - 192 + 1936
Lp = 3088 cm²
Volume :
V = V prisma + V balok
V = L alas. t + p. l. t
V = 96. 24 + 18. 16. 20
V = 2304 + 5760
V = 8064 cm³
[answer.2.content]
