Triangle PQR is drawn on a coordinate plane with vertices P (-6, 0), Q (-3, 4), and R(2, 4). What is the length of PR? Is APQRisosceles (two sides of equal length)? Use the drop-down menus to answer the questions. The length of PR is approximately Choose. units. Triangle PQR Choose. an isosceles triangle because Choose.. v are the same -2-1 Choose.. length. IS is not