A sample of a plane geometric surface is the

A. surface of a sphere.
B. side of a cylinder.
C. side of a box.
D. side of a cone.

I'm stuck on this simple but tricky question. I'm leaning toward A or C.

Use the process of elimination. One of these choices is different than the other three choices.

http://www.mathsisfun.com/geometry/plane.html

Thank you Ms. Sue! I will go with A

Aren't the surfaces of a sphere, cylinder, and cone all curved?

The 100% correct answer for the question

A sample of a plane geometric surface is the
C. side of a box.

To determine the correct answer, let's analyze each option and determine whether it fits the definition of a plane geometric surface.

A. Surface of a sphere: A sphere is a three-dimensional object, and its surface is curved, not flat. Therefore, option A is incorrect.

B. Side of a cylinder: A cylinder consists of two circular bases connected by a curved surface. The side of a cylinder is cylindrical, meaning it is curved, not flat. Therefore, option B is incorrect.

C. Side of a box: A box, or a rectangular prism, has six flat surfaces made up of rectangles. Any one of these surfaces, known as a face, can be considered a plane geometric surface. Therefore, option C is correct.

D. Side of a cone: A cone is a three-dimensional object with a curved surface that tapers to a point known as the apex. The side of a cone is also curved, not flat. Therefore, option D is incorrect.

Based on our analysis, the correct answer is option C, which is the side of a box.