How To Find The Area Of Irregular Shapes

Traditionally the math used for calculating the area of irregular shapes is called coordinate geometry and is a system of geometry where the position of points on an x and y axis grid is described using an ordered pair of numbers. Then find the area of these individual shapes and add them up. The grids x and y axis has both a negative and positive scale with the origin of them at the zero position.
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Originally created for 4th grade but hopefully useful for any students studying this topic.

How to find the area of irregular shapes. The approaches to estimating the area of irregular shape are. Find the dimensions of the subdivided. Its area cannot be calculated using any of the standard area formulas. How to calculate the area of an irregular shape assemble your tools.

Area of irregular shapes. Divide the drawing into different shapes. The easy ones are square and rectangle. Flipped lesson showing how to find the area and perimeter of irregular shapes.

Use your imagination to subdivide the irregular shape you have into more familiar shapes. Calculate the area of each small shape. Draw the area on a piece of paper using the measurements you obtained. By either adding the areas or subtracting the areas of rectangles the area of an irregular shape can be calculated.

2 720 in2. Evaluating area using unit squares apply this technique for the shapes with curves apart from perfect circle or semicircles and irregular quadrilaterals. In this method divide the shape into unit squares. Remember your drawing is to scale.

Find the edges of the smaller shapes. Add all of the areas of the small shapes the sum will be the area of the irregular shape. The area of the blue hexagon is 900 in. Break down the irregular shapes into smaller shapes.

You may have to use triangles or other shapes as well. Determine all the sides of irregular shape make sure all the sides are in same unit. To find the area of irregular shapes the first thing to do is to divide the irregular shape into regular shapes that you can recognize such as triangles rectangles circles squares and so forth. This will not work for all irregular figures.

2 180 in. An irregular figure is a figure that is not a standard geometric shape. Combine area of regular shapes to find the area of irregular shapes. So far we have found area for rectangles triangles trapezoids and circles.

Collect the area formulas for shapes youre already familiar with. Subdivide the irregular shape.