Question

8. 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

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Answer 1

Answer:

Total surface area of cuboidal box =2(lb+bh+lh)

2(20*15+15*10+10*20)

2(300+150+200)

2*650

1300cm^2

Answer 2

Answer:

1300 cm²

Step-by-step explanation:

if cuboidal box has height h = 20 cm, width b = 10 cm and length l = 15 cm

then,

Total surface area of cuboidal box = 2( lb + bh + hl)

= 2 ( 15×10 + 10 ×20 + 20 × 15)

= 2 ( 150 + 200 + 300)

= 2 ( 650)

= 1300 cm²

I hope this will help you.

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Thank you.