PLE`ASE HELP IM BEING TIMED

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Find the length of the diagonal of the rectangle. round your answer to the nearest tenth. || | | 8 m | | | | 11 m

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