Jawaban:
luas permukaan limas tanpa alas:
= 4(½×a×t)
= 4(½×20×18)
= 4(180)
= 720 cm²
luas permukaan kubus tanpa tutup
= 5(s×s)
= 5(20×20)
= 5(400)
= 2.000 cm²
2.000+720 = 2.720 cm² (C)
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Jawaban:
luas permukaan limas tanpa alas:
= 4(½×a×t)
= 4(½×20×18)
= 4(180)
= 720 cm²
luas permukaan kubus tanpa tutup
= 5(s×s)
= 5(20×20)
= 5(400)
= 2.000 cm²
2.000+720 = 2.720 cm² (C)