Question

3 solid cubes of side 3cm , 4cm, 5cm are melted and transformed into a single cube . Find the side of the new cube.

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Answer 1

this is the correct answer for this question

Answer 2

Step-by-step explanation:

Given, edges of three solid cubes are 3 cm, 4 cm and 5 cm, respectively.

∴ Volume of first cube = (3)³ = 27 cm³

Volume of second cube = (4)³ = 64 cm³

and volume of third cube = (5)³ = 125 cm³

∴ Sum of volume of three cubes = (27 + 64 + 125) = 216 cm³

Let the edge of the resulting cube = R cm

Then, volume of the resulting cube, R3 =216

⇒ R = 6 cm

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