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The length of the diagonal of a square i...

The length of the diagonal of a square is 20cm. Its area is `400 c m^2` (b) `200 c m^2` `300 c m^2` (d) `100sqrt(2)\ c m^2`

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RD SHARMA-MENSURATION-All Questions
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  3. The length of the diagonal of a square is 20cm. Its area is 400 c m...

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  15. The total cost of flooring a room at Rs. 85\ p e r\ m^2i s\ R s .5100 ...

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