Contents
What is the formula of area of polygon?
The formula to calculate the area of a regular polygon is, Area = (number of sides × length of one side × apothem)/2, where the value of apothem can be calculated using the formula, Apothem = [(length of one side)/{2 ×(tan(180/number of sides))}].
What is the area of a 4 sided shape?
1 × Diag. 2)/2 or A = (d1 × d2)/2. Example: A four-sided shape has two adjacent sides with lengths of 4 meters. You can find the area of this square by multiplying its base times its height: 4 × 4 = 16 square meters.
How do you find the area of an irregular rectangle?
Area of the given irregular shape = Area of the rectangle ‘P’ + Area of the semicircle ‘Q’ + Area of the triangle ‘R’ + Area of the rectangle ‘S’. ⇒ Area of the given irregular shape = 48 + 39.25 + 24 + 48 = 159.25 square units. Therefore, the area of the given irregular shape is 159.25 square units.
How do you calculate the area of an irregular polygon?
Area of Irregular Polygons. How to find the area of irregular polygons by following 4 simple steps: 1. Use parallel lines to find the lengths of missing sides. 2. Break the shape up into rectangles (or triangles). 3. Find the area of each smaller shape. 4. Add up the areas of each smaller shape.
How to determine if a polygon is regular or irregular?
Check that the sides of the polygon are all the same length. Regular polygons are polygons that have equal sides.
How do you measure the area of an irregular shape?
The simplest way to calculate the area of an irregular shape is to subdivide it into familiar shapes, calculate the area of the familiar shapes, then total those area calculations to get the area of the irregular shape they make up. Collect the area formulas for shapes you’re already familiar with.
What are some examples of irregular polygons?
An irregular polygon, also known as non-regular polygon is a shape that does not have all sides of equal length and all angles of equal measure. Thus any polygon that is not regular is an irregular polygon. A scalene triangle, rectangle, trapezoid or a kite are common examples of irregular polygons.