What is 324÷ 2 draw a model

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

50 points~ ! i have to turn this in tomarrow

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge