Question

a (_5,7),b(-4,_5),c(-1,_6),d(4,5)are the vertices of a quadrilateral find it's area

Answer 1

if it is vertices of quadrilateral then it forms two traingle ..i.e traingle ABC and traingle BCD ..separately we have to find the area of both the traingle and add them ..then we get area of quadrilateral ABCD