ananekusuma21
Selisih p sisi sjajarnya = 8-5 = 3 cm maka: sisi miring trapesium = akar dr 3²+4² = akar dr 9+16 = √25 = 5 cm L alas = 1/2.(jumlah sisi sjajarny).t = 1/2.(8+5).4 = 13.2 = 26 cm²
K alas = 5+8+5+4 = 22 cm jadi, Lp prisma = 2.L alas + K alas.t = 2.26 + 22.5 = 52 + 110 = 162cm²(C)
maka: sisi miring trapesium = akar dr 3²+4²
= akar dr 9+16
= √25 = 5 cm
L alas = 1/2.(jumlah sisi sjajarny).t
= 1/2.(8+5).4
= 13.2
= 26 cm²
K alas = 5+8+5+4 = 22 cm
jadi,
Lp prisma = 2.L alas + K alas.t
= 2.26 + 22.5
= 52 + 110
= 162cm²(C)