#y^2+z^2=16# is this represents a circle in 3-Dimensional space? Or 2-Dimensional Space?

1 Answer
Jun 18, 2017

See below.

Explanation:

Considering the variables #x,y,z# defining #RR^3#, this geometrical object is a surface such that for any #x# obeys #y^2+z^2= 16# so it is a cylindrical surface centered at the #x# axis having a circle with radius #4# as transversal cross section.

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