Geometry

Question Analysis

The main focus is to find the perimeter of a regular pentagon. We first use the distance formula to calculate the length of side , and then multiply by 5 since all sides of a regular pentagon are equal.

Key Concept Explanation

The distance formula between two points and is .

For a regular pentagon, the perimeter , where is the length of one side.

Step-by-Step Solution

1. Calculate the length of side with and :

Substitute

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