Question

the word decagon contains the root dec. what does the root dec mean?
bend or curve shape one hundred ten
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Explanation:

To determine the meaning of the root "dec" in "decagon", we analyze the word. A decagon is a polygon with 10 sides. The root "dec" (from Latin/Greek) typically means "ten" (e.g., decade is 10 years, decimal relates to base - 10). The other options: "bend or curve" is unrelated, "shape" is too general, and "one hundred" would relate to "cent" (e.g., centimeter, century), not "dec".

Answer:

D. ten