The sum of length, breadth and height of a cuboidal box is 19 cm and the length of its diagonal is 11 cm. find the surface area of the cuboidal box.

451 cm²

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315 cm²

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512 cm²

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240 cm²

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Solution

The correct option is D
240 cm²

(l + b + h)² - (Diagonal)²= 361-121=240 cm²

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