Jawaban:
228cm²
Penjelasan dengan langkah-langkah:
Lp = (2×Luas alas) + (Keliing alas × tinggi)
= (2×8.6per2) + (20×9)
= 48 + 180
= 228cm²
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Jawaban:
228cm²
Penjelasan dengan langkah-langkah:
Lp = (2×Luas alas) + (Keliing alas × tinggi)
= (2×8.6per2) + (20×9)
= 48 + 180
= 228cm²