Question

find the area of a triangle whose vertices are A(3,5),B(2,-1) and C(-5,6)​

Answer 1

Answer:

-49/2

Step-by-step explanation:

we know that,area of triangle=

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

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

=1/2[3×-7+2×1-5×6]

=1/2[-21+2-30]

=1/2[-51+2]

=1/2×(-49)

=-49/2

Answer 2

Step-by-step explanation:

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