The metal cubes if side 5cm ,4cm and 3cm are melted an recast into a cube .find edge of new cube so formed.
Answers
Answered by
3
sides of cubes are 5cm, 4cm and 3cm
sum of volume of small cubes= volume of big cubes
5^3 +4^3 + 3^3 = a^3
125 + 64 + 27= a^3
216 = a^3
a = 6cm
edge of new cube is 6cm
sum of volume of small cubes= volume of big cubes
5^3 +4^3 + 3^3 = a^3
125 + 64 + 27= a^3
216 = a^3
a = 6cm
edge of new cube is 6cm
Answered by
0
Answer:
6 cm
Step-by-step explanation:
volume of cube 1 =5*5*5=125
volume of cube 2 =4*4*4=64
volume of cube 3 =3*3*3=27
volume of new cube =125+64+27=216
edge of new cube = cube root of 216 = 6
Similar questions