Draw the polygon formulae for all the possible structural isomers having the molecular formula `C_(5)H_(10)`.

Explanation

To draw the polygon formulae for all the possible structural isomers with the molecular formula C5H10, we will identify and sketch each isomer step by step.

### Step 1: Identify the Isomers
The molecular formula C5H10 indicates that we are dealing with cyclic compounds (polygon) and structural isomers. We will focus on cyclic structures.

### Step 2: Draw Cyclopentane
1. **Cyclopentane**: This is a five-membered carbon ring.
- Structure:
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