ananekusuma21
16) V.prisma = L alas x t 30.000 = L alas x 50 L alas = 30.000/50 L alas = 600 cm² ---------> L alas = 1/2 x a x t 600 = 1/2 x 30 x t 600 = 15 x t t = 600/15 t = 40 cm
Lp.prisma = 2 x L alas + K alas x t.prisma = 2 x 600 + (30+40+50) x 50 = 1200 + 120 x 50 = 1200 + 6000 = 7200 cm² (D)
liwonsubagyo
Volume = L.alas x t 30.000 = Lalas x 50 L.alas = 30,000 : 50 = 600cm² L.alas = 1/2 x alas x t 600 = 1/2 x 30 x t 30 x t = 600 x 2 30t = 1.200 t = 40 cm siai miringnya = √ 30² + 40² = √ 900 + 1600 = √ 2500 = 50cm Keliling alas = a + b + c = 30 + 40 + 50 = 120cm L.permukaan = K.a x t + 2 x L a = 120 x 50 + 2 x 600 = 6.000 + 1200 = 7.200cm² Jawaban ( D )
30.000 = L alas x 50
L alas = 30.000/50
L alas = 600 cm² ---------> L alas = 1/2 x a x t
600 = 1/2 x 30 x t
600 = 15 x t
t = 600/15
t = 40 cm
Lp.prisma = 2 x L alas + K alas x t.prisma
= 2 x 600 + (30+40+50) x 50
= 1200 + 120 x 50
= 1200 + 6000
= 7200 cm² (D)
30.000 = Lalas x 50
L.alas = 30,000 : 50
= 600cm²
L.alas = 1/2 x alas x t
600 = 1/2 x 30 x t
30 x t = 600 x 2
30t = 1.200
t = 40 cm
siai miringnya = √ 30² + 40²
= √ 900 + 1600
= √ 2500
= 50cm
Keliling alas = a + b + c
= 30 + 40 + 50
= 120cm
L.permukaan = K.a x t + 2 x L a
= 120 x 50 + 2 x 600
= 6.000 + 1200
= 7.200cm²
Jawaban ( D )