Official papers

Official 2021 Paper 2 · Q7

Paper 2GeometryAlgebra

A circle has equation (x−9)2+(y+2)2=4(x-9)^2+(y+2)^2=4.

A square has vertices at (1,0)(1,0), (1,2)(1,2), (−1,2)(-1,2) and (−1,0)(-1,0).

A straight line bisects both the area of the circle and the area of the square.

What is the xx-coordinate of the point where this straight line meets the xx-axis?

A22
B33
C44
D4.54.5
E55
F66
GThe straight line is not uniquely determined by the information given, so there is more than one possible point of intersection.
HThere is no straight line that bisects both the area of the circle and the area of the square.

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