Question

( -3,5),(5,-2),and (5,6) find the area of the triangle formed by the points​

Answer 1

Answer:

A=(-3,5), B=(5,-2), C=(5,6)

Area of triangle ABC,

1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]

x1=-3, x2=5, x3=5, y1=5, y2=-2, y3=6.

1/2[-3(-2-6)+5(6-5)+5(5(-2))]

1/2[-3(-8)+5(1)+5(5+2)]

1/2[-3(-8)+5(1)+5(7)]

1/2[24+5+35]

1/2[24+40] = 1/2 multiply 64

and know 64 will be cut by 2.

Answer = 32.