Assignment7: Problem 5 Previous Problem Problem List Next Problem (1 point) Let P = (0,0,0), Q = (1,-1,-2), R=(-1,1,1). Find the area of the triangle PQR. area = Let T = (8, -5,7), U = (9,4, -3), V = (3,-9,7). Find the area of the triangle TUV. area = (1 pot consider the votom 0-27+; 8-14 2+ -1-23 Which pals it any of these vectors are (a) Are perpendicular al cos) Enter none or a pair or fint of para aya is perpendicular to 6 and (1.60) (0) Are paralel? (Enter none or a pair or list of pars, ... ila is paracoto and enter (a).(0,0) (c) Have an angles less than 2 bolween them? (a,b).(ac). (be). (b)(d). (c) (3) (Enter none or a pair or stof pareg Hls at an angle less than pl2 tomb and enter (a,b,c,d)) (d) Have an angle of more than 2 between them? one (Enter none or a pair or list of purs eg. t is at an angle greater than 2 from band enter (bl.(a,0) on this moblem