Find the measure of the indicated angle to the nearest degree.

I think it would be 90 because every triangle equals 180 and since it’s a right angel that’s 90 degrees for the square and 90+90=180

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.