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Questions  

Perimeter of the quadrilateral bounded by the coordinate axis and the lines x+y=50 and 3x+y=90 is 

a
80+202
b
80+1010
c
80+202+1010
d
110

detailed solution

Correct option is C

Coordinates of the vertices are (0, 0), (30, 0),(20, 30), (0, 50). Lengths of the sides are 30,1010,202,50.

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The line x/3+y/3=1 meets the y-and x-axis at A and B, respectively. A square ABCD is constructed on the line segment AB way from the origin. The coordinates of the vertex of the square farthest from the origin are 


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