Well, to find area you need to do base times height and from the looks of it, they are the same.
Whatever the base and/or height is, multiple those to get the area, then type it in for the answer. The side length will be the exact same thing as the height and/or base whichever is opposite of the side length.
I don’t know what happened on the previous screen so I can’t give a whole answer.
Brainliest is this helped?