![Slide7.JPG](https://d1avenlh0i1xmr.cloudfront.net/f8032973-3a2f-4821-b1e8-f95f3bdd0135/slide7.jpg)
Examples
Last updated at April 16, 2024 by Teachoo
Example 3 The side of an equilateral triangle is 3.5 cm. Find its perimeter.Perimeter = Sum of all sides = 3.5 + 3.5 + 3.5 = 3 × 3.5 = 3 × 35/10 = (3 × 35)/10 = 105/10 = 10.5 cm Thus, Perimeter = 10.5 cm