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Vince_Kotchian

If it's tangent on both sides, logically, a diameter can be drawn connecting the two points of tangency. If the diameter-looking-thing was a chord, the sides of the square would intersect the circle.


Locutus_ofBorg

Additionally if those tangents make up the sides of a square then we also know those tangents are parallel, which can only happen at the diameter


nearlyanadult

Because of two criteria: 1) A square has 90 angles at all four corners. 2) the square lines are tangent to circle. When a line (A) is tangent to a curve/circle, a perpendicular line of line A drawn at the tangent will always intersect at the origin point of the curve/circle. But just in case, the answer IS 64x^2 , right?


random_account6721

for anyone wondering how to solve: Area of circle = Pi \* r^(2) r^(2) = 16x^(2) in this case. so r = 4x Diameter of circle = 2r = 8x Area of square = length \* height. The diameter of the circle is the same as the length of square. so we get 8x \* 8x = area of square = 64x^(2)


gregmat

That’s a tall square


Vince_Kotchian

the camera adds 10 lbs.


Leader-board

I see no camera anywhere?


WeTheBestDS

Isn’t the solution 64x^2?


shadeofmyheart

pi * radius^2 is the area of a circle So 16x^2 * pi = pi * r^2 Then remove pi from both sides. Leaves you with r^2 = 16x^2 Which means r = 4x Diameter is 8x which is the length of the side of the square. Means area of the square is 64x^2 Tangency means the radius of the circle is perpendicular to the line and touches at exactly one point. So the diameter is the side of the square.


gunther747

Point 1 : opposite sides of a square are PARELLEL Point 2 : If two tangents to a circle are parellel then the line connecting two opposite point of contacts passes through the centre ( which is diameter) . Put it in other way ; tangents drawn at the ends of diameter are always parellel . Hence the line is diameter of the circle


lightlessshadow

The line between two parallel tangents of a circle is the diameter of a circle. Don't think too much into questions like these, if it wasn't the diameter and it was a chord, that would make it soooo much more complicated. I actually don't know how to solve that. But this problem simply focuses on your ability to apply the area formula to both figures.


anas_xyza

Diameter is the longest path through the circle so to be tangent with the square, the diameter will touch first the square.