What slope is perpendicular to:
m = 5/8
Options:
1) -8/5
2) -5/8
3) 5/8
4) 8/5

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy