Geometry Problem: Finding the Perimeter of a Complex Figure

Math Problem Statement

Find the perimeter of the figure. (Use π = 3).

Looking at the figure and the provided options, let's carefully recheck the perimeter calculation:

Top Horizontal Line: $9 \, \text{cm}$
Right Vertical Line: $2 \, \text{cm}$
Semi-Circular Curve:
- Radius = $2 \, \text{cm}$ , so Diameter = $4 \, \text{cm}$
- Length = $\frac{1}{2} \cdot \pi \cdot d = \frac{1}{2} \cdot 3 \cdot 4 = 6 \, \text{cm}$

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Geometry
Perimeter
Circumference of a Circle

Perimeter = sum of all side lengths
Circumference of circle = π × d

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