Plug your numbers into the area of a trapezoid formula.įollow your order of operations so solve for A or the area in inches 2.įind the area of a trapezoid given a base of 20 cm, a base of 15 cm, and a height of 10 cm. a is equal to 4, b is equal to 6, and h is 3. Note: the units are in centimeters.įirst, label your variables with the appropriate numbers. The area of the scalene trapezoid is 58 in 2.įind the area of a trapezoid given a base of 4 centimeters, a base of 6 centimeters, and a height of 3 centimeters. The area of the isosceles trapezoid is 129.5 in 2. The area of the right trapezoid is 300 inches 2.įind the area of the isosceles trapezoid. The final answer for an area of a shape is always expressed in square units.įind the area of the right trapezoid below.įirst, identify and plug in the numbers for your variables. The bases will be added together, divided by 2, and multiplied by the height. The values for a and b for the trapezoid bases can be interchangeable. All types of trapezoids share the same area formula. There are three types of trapezoids: right trapezoid, isosceles trapezoid, and scalene trapezoid. The altitude is sometimes also called the height. The parallel sides are the bases, the non-parallel sides are called legs, and the distance between the two bases is called the altitude. There are many formulas to calculate the area, but those vary based on the shape.Ī trapezoid is a quadrilateral shape with two parallel sides. A common example in everyday life is wanting to know how much paint to buy to cover a wall or carpeting a bedroom. Calculating the area of something is often used to measure how large or small a shape can be. One of the most confusing tasks in geometry is solving problems using the area of a trapezoid formula.Īrea is the term used to describe the amount of space taken up by a plane or two-dimensional shape. The average person walking down the street can solve for the area of a square or a triangle, but some shapes are more challenging than the basics. Most students are comfortable with the basic shapes and formulas taught in middle school math and high school geometry classes.
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