2 marks each2. Attempt the following:(1) Total surface area of a cuboi

1.	2 marks each2. Attempt the following:(1) Total surface area of a cuboidal box is 47.5 cmIf its length is 5 cm and height is 1.5 cm, find itsbreadth.Ans.
Answer» Let breadth of cubical box is x Then,Length l = 5 cm, Height h = 1.5 cm Volume = lengthbreadthheight = 5x1.5 Thus, 47.5 = 5x1.5x = 47.5/7.5x = 6.34 cm Therefore, breadth is 6.34 cm

2 marks each2. Attempt the following:(1) Total surface area of a cuboidal box is 47.5 cmIf its length is 5 cm and height is 1.5 cm, find itsbreadth.Ans.

Answer»

Let breadth of cubical box is x

Then,Length l = 5 cm, Height h = 1.5 cm

Volume = length*breadth*height = 5*x*1.5

Thus, 47.5 = 5*x*1.5x = 47.5/7.5x = 6.34 cm

Therefore, breadth is 6.34 cm