A cube of side 12 cm is melted down and reshaped into a cuboidal block of with 15 cm and length 18 cm how high is the block
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volume of cube = a³
= (12cm)³
= (12 × 12 × 12) cm³
volume of cuboid= lbh
= 18cm × 15cm × height
Volume of cube = volume of cuboid [since cube was melted to form cuboid]
=> 12 ×12 × 12 cm³ = 18 × 15 cm² × height
height = (12×12×12)/(15×18)
height= 6.4 cm
= (12cm)³
= (12 × 12 × 12) cm³
volume of cuboid= lbh
= 18cm × 15cm × height
Volume of cube = volume of cuboid [since cube was melted to form cuboid]
=> 12 ×12 × 12 cm³ = 18 × 15 cm² × height
height = (12×12×12)/(15×18)
height= 6.4 cm
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