exam Maths Puzzle Numerical Ability

I need to know the symmetry of any circle with center (0,0)

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exam Other Question

please help me find the inverse of this equation- 2x=5/6 Construction. A garden area is 30 ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400 ft^2, what is the width of the path?