The statement "A decagon has 10 sides" is true. Here's why:
1. A decagon is a polygon with ten sides.
2. To visualize a decagon, you can imagine a shape with ten straight sides connected together to form ten angles.
3. Each side of a decagon is connected to two adjacent sides, resulting in a total of ten sides.
4. The sum of the interior angles of a decagon is 1440 degrees.
5. Examples of real-life decagonal shapes include stop signs and some architectural designs.
Therefore, the statement that a decagon has 10 sides is correct.
