Question

if A(-5,7),B(-4,-5),C(-1,-6)and D (4,5) are the vertices of a quadrilateral, find the area of the quadrilateral ABCD

Answer 1

SOLUTION IS IN THE ATTACHMENT
Area of a quadrilateral:
To find the area of a quadrilateral first we divide it into triangular region which have no common area. Then find the area of a triangular region separately and add them to get the required area of the given quadrilateral.
Here,We find the area of triangle by using the given Formula.
Area of ∆ = ½ | x1 (y2-y3)+x2(y3-y1)+x3(y1-y2) | sq units.

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