When a paragraph has no sentence that states the main idea you say the main idea is?

When a paragraph lacks a clear sentence that states the main idea, you can infer the main idea by analyzing the supporting details and overall theme presented in the paragraph. Look for recurring concepts or topics that are emphasized, as they often point to the central idea. Additionally, consider how the details relate to one another to construct an understanding of the paragraph's focus. Ultimately, the main idea is the overarching concept that ties all the details together.