Perimeter and Area

Perimeter of an equilateral triangle = 3 × length of a side

Perimeter of a square = 4 × length of a side

In general, perimeter of a regular closed polygon = Number of sides of the polygon × length of each side

**Example:**

**If a farmer wants to fence a square field of length 50 m with 5 rounds of wire then what is the length of the wire required?**

**Solution:**

Length of wire required = 5 × (perimeter of square field)

= 5 × (4 × side)

= 5 × [(4 × 50) m]

= 1…

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