Kak tolong di jawab​

Jawaban:

168cm2

Penjelasan dengan langkah-langkah:

AD = 5cm

DE = 6cm

DF = 8cm

(banung : Prisma Segitiga)

Lp = 2×L alas + L selimut

2 L alas = 2×(1/2×DE×DF)

2 L alas = 2(1/2×6×8)

2 L alas = 48cm2

L selimut = AB×BE + BC×CF + AC×AD

(AB = CF = AD, BC = EF, AB=DE , AC = DF)

BC = √8^2 + 6^2 = 10cm

L selimut = 6×5 + 10×5 + 8×5

L selimut = 120cm2

Lp = 48 + 120 = 168cm2