# How to find the missing side of a trapezoid

## Area of a Trapezoid Since this problem provides the length for both of the bases as well as the total perimeter, the missing sides can be found using the following formula: Perimeter .

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A trapezoid is defined as a quadrilateral with two parallel sides. As with any polygon, to find the perimeter of a trapezoid you need to add all four of its sides together. However, often you will be missing side lengths but have other information, such as the height of the trapezoid, or the angle measurements. Using this information, you can use rules of geometry and trigonometry to find the unknown lengths of sides. To find the perimeter of a trapezoid if you know the length of both sides and the bases, add together the length of all 4 sides. If you know the height, both side lengths, and the top base length, draw a straight line down from each top corner to form a square and 2 triangles. Then, use the Pythagorean Theorem to find the length of the base of each triangle.

If you ever had problems with remembering the formulas in geometry class, this area of a trapezoid calculator is bound to help you. In just a few simple steps, you will be able to find the area of a trapezoid and determine all of its other properties, such as side lengths or internal angles. So, if you are troubled by questions like "how to find the perimeter of a trapezoid", look no further - simply keep reading to find out! You can also check out our circumference calculator to analyze the geometry of a circle in more detail. A trapezoid is a 4-sided geometrical shape with two sides parallel to each other.

What must be the length of the other base? If the area of a trapezoid is , the height of the trapezoid is , and the base length is , what must be the length of the other base? The perimeter of the trapezoid is. Find the length for one of the two remaining sides. To solve this problem, first note that an isosceles trapezoid has two parallel bases that are nonequivalent in length. Additionally, an isosceles trapezoid must have two nonparallel sides that have equivalent lengths.

What must be the length of the other base? If the area of a trapezoid is , the height of the trapezoid is , and the base length is , what must be the length of the other base? The perimeter of the trapezoid is. Find the length for one of the two remaining sides. To solve this problem, first note that an isosceles trapezoid has two parallel bases that are nonequivalent in length. Additionally, an isosceles trapezoid must have two nonparallel sides that have equivalent lengths.

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Practice: Area of trapezoids. Finding area by rearranging parts. Area of composite shapes. Practice: Area of composite shapes. Practice: Area challenge.

## Intermediate Geometry : How to find the length of the side of a trapezoid

Area is 2-dimensional like a carpet or an area rug. For example, in the diagram to the right, the bases are parallel.

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Bases - The two parallel lines are called the bases. What is wrong with trapezoid LMNO pictured below? Explain why LMNO cannot be a trapezoid based on the information provided. Use the midsegment theorem to determine the length of midsegment ON. The most important thing to remember is that a midpoint bisects a line cuts a line into two equal halves. The midsegment of a trapezoid is the segment that joins the midpoints of the nonparallel sides of a trapezoid. In the trapezoid below, the midpoints of the non-parallel sides are points S and V. To do so, we start with the formula for the area of a trapezium : Where a and b are the parallel sides of the trapezium and h is its height.,

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## Area of a Trapezoid Calculator

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