Geometry

Question Analysis:
This question is about the relationship between the perimeter of an equilateral triangle and the length of its sides.
The main focus is on applying the formula for the perimeter of an equilateral triangle.

Key Concept Explanation:
The perimeter of a triangle is the sum of the lengths of its three sides.
For an equilateral triangle, since all three sides are of equal length, if the length of one side is , then the perimeter .

Step - by - Step Solution:
We are given that the perimeter inches.
Using the formula , we substitute into the equation: .
To solve for , we divide both sides of the equation by 3. So, inches.

Option Analysis:
Option A: 6 inches is incorrect. If

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