1.

Find the area of the triangle whose vertices are A(4, 3) B(5, 4) c(11, 2)​

Answer»

Answer:

AREA of triangle=-7

Step-by-step explanation:

x1=4,x2=5,x3=11;y1=3,y2=4,y3=2

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

=1/2[4(2-4)+5(4-3)+11(3-4)]

=1/2[4(-2)+5(1)+11(-1)]

=1/2[-8+5-11]

=1/2[-19+5]

=1/2[-14]

=-7

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