Find the area of a triangle PQR, where P = (-3, -3, 6), Q = (4, −2, −5), and R = (1,4,5)

Show that there is no triangle for which a=4 feet, b=14 feet, and A=60.

aPlot the points P0, 3, Q3, 0, and R6, 3 in the coordinate plane. Where must the point S be located so that PQRS is a square? bFind the area of PQRS.