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evablogger [386]
3 years ago
14

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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