# ISEE Middle Level Math : How to find the perimeter of a trapezoid

## Example Questions

### Example Question #1 : Trapezoids

The perimeter of the following trapezoid is equal to 23 cm. Solve for . (Figure not drawn to scale.)      Explanation:

The perimeter is equal to the sum of all of the sides.       ### Example Question #41 : Geometry

Find the perimeter of the trapezoid:      Explanation:

The perimeter of any shape is equal to the sum of the lengths of its sides: ### Example Question #1 : How To Find The Perimeter Of A Trapezoid

You recently bought a new bookshelf with a base in  the shape of an isosceles trapezoid. If the small base is 2 feet, the large base is 3 feet, and the arms are 1.5 feet, what is the perimeter of the base of your new bookshelf? Cannot be determined from the information provided.   Explanation:

You recently bought a new bookshelf with a base in  the shape of an isosceles trapezoid. If the small base is 2 feet, the large base is 3 feet, and the arms are 1.5 feet, what is the perimeter of the base of your new bookshelf?

To find the perimeter of a bookshelf, we need to add up the lengths of the sides.

We know the two bases, we just need to add the lengths of the arms.  