If a cuboidal box has height, length and width as 20 cm, 15 cm and 10 cm respectively. Then its total surface area is:A1100 cm²B1200 cm²C1300 cm²D1500 cm²Answer: C. 1300 cm² Read Explanation: Total surface area = 2 (20 × 15 + 20 × 10 + 10 × 15) TSA = 2 ( 300 + 200 + 150) = 1300 cm²Read more in App