The following are the steps involved in finding the area of the triangle with vertices (2,3),(4,7...

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The following are the steps involved in finding the area of the triangle with vertices (2,3),(4,7) and (8,5). Arrange them in the sequential order from first to last.
(A) 1/2|(-2) 2-(-4)(-4)|=1/2|-20|=10 sq. units
(B) Area of triangle =1/2|[ x_1-x_2 x_2-x_3; y_1-y_2 y_2-y_3 ]|
(C) Let (x_1, ฮณ_1)=(2,3),(x_2, ฮณ_2)=(4,7) and (x_3., .y_3)=(8,5)
(D) Area of triangle =1/2|[ 2-4 4-8; 3-7 7-5 ]|
(a) ABCD
(b) CBDA
(c) CBAD
(d) None of these

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