# The area of the triangle formed by the points P(0,1), Q(0,5) and R(3,4) isA. 16 sq. unitsB. 8 sq. unitsC. 4 sq. unitsD. 6 sq. Units

If (x1, y1), (x2, y2), (x3, y3) (x1, y1) (x2, y2), (x3, y3) are the vertices of a triangle then its area is given by

Area = |1/2 (x1(y2 −y3)+x2 (y3 −y1 )+x3 (y1 −y2 ))|

Area = [(0(5-4)+0(4-1)+3(1-5)]

| [-12]|

6 sq. units

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