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sisi atas = 15 cm
sisi bawah = 25 cm
sisi miring = 13
dit. V...?
V = L.alas × T.prisma
L.alas = Jumlah Sisi Sejajar × T.trapesium / 2
jss = sisi atas + sisi bawah
= 25 cm + 15 cm
= 40 cm
T.trapesium = √13² - 5²
= √ 164 - 25
= √144
= 12 cm
L.alas = 40 × 12 / 2
= 240 cm²
V = L.alas × T.prisma
= 240 cm² × 40 cm
= 9600 cm³