Question

(D) 9856 cm2
A rectangular box is 2 m long and 3 m wide. How many cubic metres of sand are needed to fill the box upto a depth of 12 cm
082ms​

Answer 1

Answer:

194 195 196 195 1o5

195195 195 195

Answer 2

Answer:

• Length = 2 m
• Breadth = 3 m
• Height = 12 cm

So to fill it with sand upto depth of 12 cm, we need to find volume of the box. But before that let's change unit of Height into metre.

• Height = 12/100 m = 0.12 m

• According to the Question :

⇒ Volume = Length × Breadth × Height

⇒ Volume = 2 m × 3 m × 0.12 m

⇒ Volume = 0.72 m³

∴ 0.72 cubic metres sand are needed.

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Formulae related to Cuboid :

1. CSA = 2(L + B) × H

2. TSA = 2(LB + BH + HL)

3. Volume = LBH

4. Diagonal = √(L² + B² + H²)