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If a cuboidal box has height, length and width as 20 cm, 15 cm and 10 cm respectively. Then its total surface area is: |
1100 cm² 1200 cm² 1300 cm² 1400 cm² |
1300 cm² |
Total surface area = 2 (20 × 15 + 20 × 10 + 10 × 15) = 1300 cm² |
