How do I calculate the area of a square with 490 mm2?

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To calculate the area of a square with an area of 490 mm², one must determine the length of each side, which is found by taking the square root of the area. The square root of 490 mm² is approximately 22.14 mm. The discussion reveals confusion regarding the shape in question, as the provided image may not accurately represent a square. Clarification is needed on the dimensions and shape being analyzed. Ultimately, understanding the basic geometric principles is essential for calculating area correctly.
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Hello!

This is pretty easy but i´m failing...

The area of this "square" should be 490 mm2 .
What the proper way to do this..., I guess its simple geometry but for the moment I am drawing blank...
 

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Something is wrong in your image, when I consider the number all the way at the bottom to be the length of a side... using Pythagoras to calculate the diagonal length doesn't give me the indicated value.
Is it really a square? What precisely measures 22.3?
 
No, its nor really a square. Yes, it was a pretty crappy picture, but I got to the solution on my own. thanks for the help
 
I need help with normal shape area. Anyone?
 
WadeS, welcome to PF :smile:

It would have been best to ask your question in a brand new thread, since it appears unrelated to what was asked here.

That being said, what shape is it you need help with finding the area?:confused:
 

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