Three cubes of 3 cm, 4 cm and 5 cm are melted and new cube is fromed. Find the edge of the new cube.
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Answer:
the edge of new cube would be 6cm
Step-by-step explanation:
Area of first cube = l^3
=3^3
=27
Area of second cube =l^3
=4^3
=64
Area of third cube =l^3
=5^3
=125
Area of new cube formed
after melting these
three cubes =27+64+125
l^3 =216
l = 6 (taking cube root)
The length of new edge would be 6cm
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