3 years ago

Jumlah panjang rusuk sebuah kubus adalah 84cm. luas permukaannya adalah.....

Mathematics

1 answer:

antoniya [11.8K]3 years ago

7 0

Answer:

Total surface area of cube = 294 cm²

Step-by-step explanation:

Given:

Perimeter of cube = 84 cm

Find:

Total surface area of cube

Computation:

Perimeter of cube = 12 x side

84 = 12 x side

Side = 7 cm

Total surface area of cube = 6(a)²

Total surface area of cube = 6(7)²

Total surface area of cube = 294 cm²

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