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The sum of length, breadth and height of a cuboid is 20 cm. If the length of the diagonal is 12cm, then find the total surface area of the cuboid.
एक घनाभ की लंबाई, चौड़ाई और ऊंचाई का योग 20 सेमी है। यदि विकर्ण की लंबाई 12 सेमी है, तो घनाभ का कुल सतह क्षेत्रफल ज्ञात करें |

A

`356 cm^2`

B

`364 cm^2`

C

`256 cm^2`

D

`264 cm^2`

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