## Trapezoid

### A trapezoid is a quadrilateral with at least one pair of parallel sides

A trapezoid is a quadrilateral with at least one pair of parallel sides. In a trapezoid, the parallel sides are called bases, and the other two sides are called legs. The height of a trapezoid is the perpendicular distance between the bases. The area of a trapezoid can be calculated using the formula: A = (b1 + b2) × h / 2, where b1 and b2 represent the lengths of the two bases, and h represents the height. The perimeter of a trapezoid is the sum of all its side lengths.

To better understand trapezoids, let’s look at an example. Consider a trapezoid with bases of lengths 5 cm and 9 cm, and a height of 4 cm. Using the formula for area, we can calculate its area as follows:

A = (5 + 9) × 4 / 2

A = 14 × 4 / 2

A = 56 / 2

A = 28 cm²

So, the area of this trapezoid is 28 square centimeters.

In addition to calculating the area, we can also find the perimeter of a trapezoid. The perimeter is simply the sum of all its side lengths. For example, let’s say the trapezoid we are considering has leg lengths of 3 cm and 7 cm, and bases of lengths 5 cm and 9 cm. The perimeter can be found as:

Perimeter = 3 + 7 + 5 + 9

Perimeter = 24 cm

So, the perimeter of this trapezoid is 24 centimeters.

Understanding the properties and formulas related to trapezoids allows us to solve various problems involving their dimensions and calculations.

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