Geometry

Question Analysis

The main focus is to find the perimeter of a regular pentagon. Since it's regular, all sides are equal. First, use the distance formula to find the length of side , then multiply by 5 to get the perimeter.

Key Concept Explanation

The distance formula between two points and is .

For a regular polygon, the perimeter is the side - length times the number of sides , i.e., .

Step-by-Step Solution

1. Calculate the length of side with and :

Substitute

Click "Show Answer" to reveal the answer and analysis