Tentukan luas permukaan tabung, jika diketahui diameter tabung 14 cm dan tingginya 10 cm
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Jawaban:
748 cm²
Penjelasan dengan langkah-langkah:
Lp = 2 x phi x r x (r + t )
= 2 x 22/7 x 7cm x (7cm + 10cm)
= 44 cm x 17 cm
= 748 cm²