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Find the area of quadrilateral ABCD …

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Find the area of quadrilateral ABCD the co-ordinate of whose vertices are A(-3,2) B(-5,4) C(7,-6) D(-5,-4)

Posted by Karanjeet Behera 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Suhani Hotwani 6 years, 2 months ago

By dividing quadrilateral in 2 parts by joining daigonal from A to c , so it becomes 2 triangles 1. Triangle ABC 2. Triangle ACD Now , placing the point given in question Finally put the formula area of triangle Which is , ½ x1(y2-y3)+x2(y3-y1)+x3(y1-y3) So we get Area of triangle 1st is 2 cm Area of triangle 2nd is 38 cm Finally, Adding both the triangle area 2+38=40 cm Solved!!!!!!!!!!!!!!

1Thank You

Suhani Hotwani 6 years, 2 months ago

Area of quadrilateral is 40

1Thank You

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CBSE > Class 10 > Mathematics