Let’s look at how to find the perimeter of a trapezoid. A trapezoid is a quadrilateral that has two parallel sides and two sides that are not parallel. The four sides of a trapezoid do not have to be equal lengths. The video goes over two problems over finding the perimeter of a trapezoid.

**Problem 1.**What is the perimeter of a trapezoid that has sides of 4, 5, 6, and 8 units in length?

4 + 5 + 6 + 8 = 23 units

*" A trapezoid is a quadrilateral that has two parallel sides. A quadrilateral must have four sides."*

**Problem 2.**How do you find the perimeter of an isosceles triangle that has sides of 5, 4, and 8 units in length?

Therefore, the missing side length will be 5 units.

**Step 2.**Next, add the four sides.

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