Question

) Find the area of triangle , whose co-ordinates are

(4, −6), (3, −2) and (5, 2) then find the length of the

median AD?
​

Answer 1

Answer:

-6

Step-by-step explanation:

(4, -6) (3, -2) (5, 2)

(X1, Y1) (X2, Y2) (X3, Y3)

area of triangle =1/2[X1(Y2-Y3)+X2(Y3-Y1)+X3(Y1-Y2)]

=1/2[4(-2-2)+3(2-(-6))+5(-6-(-2))]

=1/2[4(-4)+3(2+6)+5(-6+2)]

=1/2[-16+3(8)+5(-4)]

=1/2[-16+24-20]

=1/2[8-20]

=1/2[-12]

=-12/2

=-6