Answer: The diagonal is 37 cm.
The diagonal is the hypotenuse of a right-angled triangle whose sides are the length and breadth. By Pythagoras theorem,
\[d^2 = 35^2 + 12^2\] \[= 1225 + 144 = 1369\] \[d = \sqrt{1369} = 37\ \text{cm}\]1 answer
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· 24 Oct 2026
AI-verified · Oct 2026
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