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The length of a diagonal in cms of a rectangle of length 5 cm and width 3 cm is:

A. 

B. 

C. 4

D. ± 4 

This question was previously asked in
NTPC Tier I (Held On: 11 Apr 2016 Shift 1)
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  1. D
  2. B
  3. A
  4. C

Answer (Detailed Solution Below)

Option 3 : A
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Detailed Solution

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As we know,

Diagonal of rectangle = √(l2 + b2) = √(52 + 32) = √(25 + 9) = √34 

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