For rhombus GHJK, find m21.

Half angle K is 30 and the center is 90 so that half angle J is 60 and angle H is equal to angle K so half of H is 30 so that half of G is 60

m<1 =60

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.

P0000000000p genafhysjq each e yeh wy