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Q:

The ratio of two unequal sides of a rectangle is 1 : 2. If its perimeter is 24 cm, then the length of diagonal in cm is:

  • 1
    $$ {2 \over {\sqrt {5}}}$$
  • 2
    $$ {4 \over {\sqrt {5}}}$$
  • 3
    $$ {2 {\sqrt {5}}}$$
  • 4
    $$ {4 {\sqrt {5}}}$$
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Answer : 4. "$$ {4 {\sqrt {5}}}$$"

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