Siddh Kijiye ki Bindu (1 - 1) ,(5,2),(9,5)

1.	Siddh Kijiye ki Bindu (1 - 1) ,(5,2),(9,5)
Answer» Let A(1,-1),B(5,2) and C(9,5)Area of Triangle=1/2[X1(Y2-Y3)+X2(Y3-Y1)+X3(Y1-Y2)] =1/2[1(2-5)+5(5+1)+9(-1-3)]=1/2[-3+30-36]=1/2*(-9)=4.5 unit sq.(AREA CANNOT BE NEGATIVE)

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