How do you find the area of 7 & 8?

Area= Length x Width
7: 48m 2
8: 78.37375 ft 2

For the first one split into 3. Find the area of the 2 triangles by timesing base by height and add the square in the middle. Sorry if this didn't make sende

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.