Determine whether the line through each pair of points is perpendicular

What are the x and y coordinates to the problem so I can solve.

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.

For me i think it'll land on blue