Maths With Ram
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16/02/2026
15/02/2026
📐 TSA of a Cuboid when Sum of Sides and Diagonal are Given
If
S = (l + b + h)
D = √(l² + b² + h²)
Then,
TSA = S² − D²
This result is very useful in board exams when direct dimensions are not given.
Understand the derivation once — you will never forget this formula.
Follow for more Class 10 board-focused Maths concepts.
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