alleryThe edges of a cuboid are 12 cm, 4 cm and 3 cm. What is the length of its longest diagonal?
A13 cm
B12.5 cm
C19 cm
D11 cm
Answer & Solution
Correct answer: A. 13 cm
The space diagonal is √(144 + 16 + 9) = √169 = 13 cm.
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