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In an xy-coordinate system, which points do not lie in

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In an xy-coordinate system, which points do not lie in [#permalink] New post   02 Nov 2020, 10:52
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In an ??-coordinate system, which points do not lie in the interior of a circle with center (0,0) and radius 5?


Indicate all such points.


A. (1, −5)

B. (0,5)

C. (2, −2)

D. (3,3)

E. (−3,4)

F. (5,5)


Source: 320 GRE Math Questions
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A,B,E,F
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Re: In an xy-coordinate system, which points do not lie in [#permalink] New post   03 Nov 2020, 06:00
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How come option E: (-3,4), is also right when the circle extends till (-5,5), because the radius is 5?

(-3,4) should be in circle's interior.

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Re: In an xy-coordinate system, which points do not lie in [#permalink] New post   30 Jan 2021, 19:52
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Radius of circle = 5

if a point is (-3,4)

The distance of point from origin is sqrt(3^2 + 4^2) = 5, so it lies on the circle.

Use the concept of Pythagoras theorem for other points.
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Re: In an xy-coordinate system, which points do not lie in [#permalink] New post   14 Sep 2024, 02:49
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Re: In an xy-coordinate system, which points do not lie in [#permalink]
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