Question

16.1 ka kaisa bhi sawaal bata dijiye me class 10 me pedti hu RBSE bord se plz explain ✍️✍️​

Answer 1

Answer:

Let for the cuboid,

length = 5x

breadth = 3x

and height = 2x

Total surface area of cuboid = 558 cm2

⇒ 2(lb + bh + hl) = 558

⇒ (5x × 3x) + (3x × 2x) + (2x × 5x) = \frac { 558 }{ 2 }

⇒ 15x2 + 6x2 + 10x2 = 279

31x2 = 279

x2 = \frac { 279 }{ 31 }

x2 = 9

x = √9

= 3 cm

∴ The length of the cuboid 5 × 3 = 15 cm

breadth = 3 × 3 = 9 cm

height = 2 × 3 = 6 cm

Hence, the length = 15 cm, breadth = 9 cm and height = 6 cm.

Step-by-step explanation:

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