Question

Length of a rectangular field is 12km and breadth 9km.Find length of its diagonal.​

Answer 1

Answer:

Let the diagonal be x then,

$x {}^{2} = 9 {}^{2} + 12 {}^{2}$

$x { }^{2} = 81 + 144$

$x {}^{2} = 225$

$x = \sqrt{225}$

$x = 15.$

Step-by-step explanation:

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Answer 2

Answer:

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x=15