Question

in dealing with surface area, what is a net?
a. two - dimensional figure that can be cut out and folded up to make a three - dimensional solid
c. three - dimensional figure that represents a prism
b. three - dimensional figure that represents a cylinder
d. one - dimensional figure that measures the lateral edge of a prism
please select the best answer from the choices provided
a
b
c
d

Explanation:

To determine the correct answer, we recall the definition of a net in the context of surface area. A net is a two - dimensional representation of a three - dimensional solid. When we cut out the net (the two - dimensional figure) and fold it, we can form the three - dimensional solid.

• Option A: Says a two - dimensional figure that can be cut out and folded up to make a three - dimensional solid. This matches the definition of a net.
• Option B: A three - dimensional figure that represents a cylinder is just a cylinder itself, not a net. A net is two - dimensional.
• Option C: A three - dimensional figure that represents a prism is the prism itself, not a net. Nets are two - dimensional.
• Option D: A one - dimensional figure that measures the lateral edge of a prism is a line segment (for the lateral edge), which has nothing to do with the definition of a net.

Answer:

A. two - dimensional figure that can be cut out and folded up to make a three - dimensional solid