### Example 1: Trapezoid ABCD has legs 6 cm and 7 cm in length. Its bases are 16 cm and 18 cm respectively. Find the perimeter of the trapezoid using Perimeter of a Trapezoif formula.

**Solution:**

Given:

a = 6 cm, b = 7 cm, c = 16 cm, d = 18 cm

Using Perimeter of a Trapezoif formula, perimeter is given by:

P = a + b + c + d

= 6 + 7 + 16 + 18

= 47 cm