# What is the formula for finding area of a trapezoid?

Table of Contents

## What is the formula for finding area of a trapezoid?

Area of a trapezoid is found with the formula, A=(a+b)/2 x h. Learn how to use the formula to find area of trapezoids.

## What is b1 and b2 in a trapezoid?

A trapezoid is 4-sided figure with exactly one pair of parallel sides. The two parallel sides are the bases; we will call them b1(base one) and b2(base two). The other 2 sides are called the legs.

## Why is the area of a trapezoid b1 b2 )* H 2?

The two parallel sides of a trapezoid are its bases. If we call the longer side b1 and the shorter side b2, then the base of the parallelogram is b1 + b2. Area of a trapezoid = 1 2 (base 1 + base 2)(height). A = 1 2 h(b1 + b2) The area of a trapezoid is half its height multiplied by the sum of its two bases.

## Why does the trapezoid area formula work?

In the case of the trapezoid, the bases cannot be chosen at will. The area of this parallelogram is its height (half-height of the trapezoid) times its base (sum of the bases of the trapezoid), so its area is half-height × (base1 + base2).

## What is the area in square units of trapezoid ABCD shown below?

To get the area of a trapezoid, you will do the height times the b1 plus b2 divided by 2. In this case, h = 2; b1 = 5; b2 = 20. [2 * (5 + 20)] / 2 = (2 * 25) / 2 = 50 / 2 = 25 square units.

## How do you find the area of ABCD?

Its area A can be calculated using the formula A = bh. Figure 15.12 Parallelogram ABCD has an altitude of length h and a base of length b.

## How do you find the area of an irregular rectangle?

Method 1: To find the area of irregular shapes, we can divide the irregular shape into regular polygons and then find the area of each individual polygon. Therefore, the area of the given irregular shape = Area of all the regular polygons that the irregular shape is divided into.

## How do u find area of a triangle?

So, the area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle. Example: Find the area of the triangle. The area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle.

## What is the area of the shape below?

Answer: The answer is 886.

## How do you find the area of an irregular trapezoid?

How do you find the area of an irregular trapezoid? An irregular trapezoid has nonparallel sides of unequal length. To find its area, you need to find the sum of the bases and multiply it by half of the height. The height is sometimes missing in the question, which you can find using the Pythagorean Theorem.

## How do you find the area when all four sides are different?

Use the following equation: Area = side × side or A = s. Example: If one side of a square has a length of 4 feet, (t = 4), then the area of this square is simply t2, or 4 x 4 = 16 square feet.

## How do you find the area of 5 different sides?

How to use irregular area calculator?

- Step 1: Measure all sides of the area in one unit (Feet, Meter, Inches or any other).
- Step 2: Enter length of horizontal sides into Length 1 and Length 2. And Width of the vertical sides into Width 1 and Width 2.
- Step 3: Press calculate button.
- Our Formula: Area = b × h.

## What is the formula for area of a polygon?

To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem.