Measurement of 24" - Need please!!

[CBAviator]

OK so I thought I had the correct measurements, but I'm sure they're wrong.

Can someone provide me with the SCREEN measurements for the 24" iMac? I'm just looking for the viewable dimensions, not the whole thing.

Measurements for the 20" would also be appreciated. Thanks.

 

[CBAviator]

I need measurements again if at all possible. Thanks in advance for anyone's help.