BlogHide Resteemsthuthuzar (19)in mst • 6 years agoVxhjcbbz,7), B(5,-5) and C(10,7). The area of △ABC is A.50 B.60 C.80 D.120 E.140 30.△ABC is an isosceles right triangle with ∠B=90°. If A(3,-2),B(2,-1), then AC=… A. 2 B.1 C.2 D.3…