What do you call a polygon with 8 sides?

What do you call a polygon with 8 sides?

• A. Hexagon
• B. Heptagon
• C. Octagon
• D. Nonagon

Answer: (C)

A polygon with 8 sides is called an octagon. This name is derived from the Greek words "octo," meaning eight, and "gon," which refers to a angle or corner. Therefore, an octagon has eight corners and eight sides. The properties of an octagon include having internal angles that sum to 1080 degrees, which can be calculated using the formula for the sum of the internal angles of a polygon: (n-2) × 180, where n is the number of sides. In contrast, a hexagon has 6 sides, a heptagon has 7 sides, and a nonagon has 9 sides. Understanding these specific names for polygons helps in geometry and can aid in visualizing shapes based on the number of sides they have.

A polygon with 8 sides is called an octagon. This name is derived from the Greek words "octo," meaning eight, and "gon," which refers to a angle or corner. Therefore, an octagon has eight corners and eight sides. The properties of an octagon include having internal angles that sum to 1080 degrees, which can be calculated using the formula for the sum of the internal angles of a polygon: (n-2) × 180, where n is the number of sides.

In contrast, a hexagon has 6 sides, a heptagon has 7 sides, and a nonagon has 9 sides. Understanding these specific names for polygons helps in geometry and can aid in visualizing shapes based on the number of sides they have.