Question

find the breadth of a cuboid whose length is 15 cm height is 7 cm and area of four walls is 378 cm²​

Answer 1

Answer:

Ans is 3

Step-by-step explanation:

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Answer 2

Cuboid

Given:

Length of cuboid is 15 cm

Height of cuboid is 7 cm

Area of four walls is 378 cm²

To find:

Breadth of a cuboid

Step-by-step explanation:

Let the length be l, the breadth be b, and height be h.

Area of 4 walls of a cuboid is 2(l + b) × h

Now, 2(l + b) × h = 378

• 2(15 + b) × 7 = 378
• 30 +2b =  $\frac{378}{7}$
• 2b = $\frac{378}{7} - 30$
• 2b = 54 - 20
• 2b = 34
• b= 17

So, the breadth of the cuboid is 17 cm.