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