Question : The length of the diagonal of a rectangle with sides 4 m and 3 m would be:
Option 1: 12 m
Option 2: 7 m
Option 3: 5 m
Option 4: 14 m
Correct Answer: 5 m
Solution :
Given: The sides of the rectangle are 4 m and 3 m.
$\text{Diagonal} = \sqrt{\text{Length}^2+\text{Breadth}^2}$
$=\sqrt{4^2+3^2}$
$=\sqrt{16+9}$
$=\sqrt{25}$
$=5$ m
Hence the correct answer is 5 m.
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