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7. A certain music box ha the shape of a cube. Each side of the tanie baxia 15 em long. What is the surface area of the box​

Sagot :

Answer:

1350cm²

Step-by-step explanation:

surface area of cube=6a²

where, a=15cm

so, 6(15)²

6(225)=1350cm²

therefore,the surface area of cube is 1350cm².