Question

Find the area of triangle whose vertices (-5,-1)(3,-5)(5,2)

Answer 1

Answer:

Step-by-step explanation:

area of triangle= 1/2 [ x1 ( y2-y3) + x2 ( y3- y1) + x3(y1-y2)]

1/2 [-5(-5-2) + 3 ( 2+1) + 5 ( -1+5)]

1/2 [-5(-7) +  3  (3) + 5 (4)]

1/2 [35 + 9 +20)

1/2(64)

=32 units