Hello guys, i noticed that there was not a proper square root key so in that case what is the square root of 29

There IS a square root key - it's next to the "csc" key.......

What do you mean "there is no proper square root key"!!!. Did you look carefully just above the "Log" key. It looks like this: √x . Enter you number and press that key followed by = key. That should give your your answer.