Mr. johnson is working on constructing a square table for his classroom. he positioned his design on a coordinate grid, as shown. mr. johnson will need to put a brace through each diagonal of the table in order to secure the table's stability. on the directions that came with the brace, mr. johnson read, "if using more than one brace, the braces must intersect at exactly a right angle". use the diagram above to label two diagonals (to represent each brace). prove that the braces will intersect at a right angle and that the table will be stable. complete your work in the space provided or upload a file that can display math symbols if your work requires it a(-3,2) b(-3,-5) c(4,-5) d(4,2)