Question

luas permukaan prisma diatas adalah

a.144
b. 240
c. 288
d.480​

jwb pke cara

Answer 1

Luas permukaan Prisma Segitiga :

L = 2 × (½ × a × t) + 3 × (a × tp)

L = 2 × (½ × 8 × 6) + 3 × (8 × 10)

L = 48 + 240

L = 288 cm²

Jawaban Opsi C.

Answer 2

Cari sisi miring
c= √b²+a²
= √8²+6²
= √64+36
= √100 = 10

jadi,

Lp= (2 x La) + (Ka x t)
= (2 x (1/2 x a x t) + ((a+b+c) x t)
= (2 x (1/2 x 8 x 6) + ((6+8+10) x 10)
= (2 x (4 x 6) + (24 x 10)
= (2 x 24) + 240
= 48 + 240
= 288 (C).