Question

a cube is 21 cm long. find its total surface area, lateral surface area and volume..
if any one can give the correct answer with correct explanation, i will mark him or her as the brainliest..​

Answer 1

Answer:

TSA = 2646 cm²

CSA = 1764 cm²

Volume = 9261 cm³

Step-by-step explanation:

let L be length of cube

so L = 21cm ( remember 21² = 441 )

a) TSA of cube = 6L²

6 × 441

2646 cm²

b) CSA of cube = 4L²

4 × 441

1764 cm²

c) Volume = L³

21 × 441

9261 cm³

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Answer 2

Step-by-step explanation:

your answer is 9261cm

of total surface area