A regular polygon is a polygon whose all sides are equal and all __________ are equal.

Options

A. Diagonals
B. Points
C. Angles
D. None

Answer

To answer the question, we need to fill in the blank regarding the properties of a regular polygon.

### Step-by-Step Solution:

1. **Understanding Regular Polygons**: A regular polygon is defined by having all sides of equal length. This means that if you measure each side of the polygon, they will all be the same.

2. **Identifying Angles**: In addition to having equal sides, a regular polygon also has equal angles. This means that if you measure each internal angle of the polygon, they will all be the same.

3. **Filling in the Blank**: Given the definition of a regular polygon, we can conclude that the missing word in the statement is "angles". Therefore, the complete statement is: "A regular polygon is a polygon whose all sides are equal and all angles are equal."

### Final Answer:
A regular polygon is a polygon whose all sides are equal and all **angles** are equal.

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