Find the area of quadrilateral ABCD whose vertices are A(-5,7), B(-4,-5), C(-1,-6) and D(4,5).

What is answer of this question? I solved this question but my answer is coming different from answer given in sample Q-P .. So I got confused ... In sample Q-P its given that area = 72 .but i am not getting this value at all. hoping for guide lines from you.

@Anandbhashyakarla: has correctly provided the solution.

For finding the area of quadrilateral ABCD, join AC. Area of two obtained triangles can be found out by using the formula .

Area of triangle ABC = square unit

Area of triangle ADC = square unit

∴ Area of quadrilateral ABCD = Area of triangle ABC + Area of triangle ADC = square unit = 72 square unit

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