By finding the total area, you can see if all of the areas of your shapes combined match the total area of the rectangle. It's a safe-check.
Some irregular shapes can be broken down into a combination of rectangles. Think of a solid "L" shape. It might be difficult to find the area of that. But if you think of it as two rectangles, it's a lot easier.
Area of a rectangle: a = l * w
The answer depends on what information you have about the rectangle: the area and width, or width and diagonal, area and perimeter or some other measures.
A = lw Area of a rectangle = length times width
Multiply length times width if the shape is a rectangle. Other shapes have different formulas.
L.A.= 2*pi*radius*height its not like finding the area of a rectangle. a cylinder is a 3-D shape and a rectangle is a flat shape
That is the definition of the area of a rectangle. It does not work for any other shape.
Area of rectangle is l x b. Where l is length and b is breath of the rectangle.
the area of a triangle is base times height times one half and rectangle is length times width
The formula for the area of the shape really depends on the shape. Some of the following are the areas of certain shapes: Rectangle area = lw (length x width) Parallelogram area = bh (base x height) Triangle area = 1/2 bh Trapezoid area = [(b1 + b2)/2] h There are other shapes as well that require different formulas for finding their area.
in order to find area of rectangle=(len*bred)
base times height = area