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Panjang = 14
Lebar = 9
tinggi = 15
prisma.
hmm
Rumus
2 x (panjang x lebar + panjang x tinggi + lebar x tinggi)
2 x (14 x9 + 14 x 15 + 9 x 15)
2 x (126 + 210 + 135)
2 x 471 = 942
Jadi jawaban nya
.
.
C . 942
.
.
.
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2(14x15/2)+2(9x15/2)
210+135
=345cm^2
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345cm^2 + 126cm^2 = 471cm^2 ( A )