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Q: How can finding the area of a rectangle help you find the area of other shapes?

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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.

Area of a rectangle = (length of the rectangle) multiplied by (width of the rectangle)

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.

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

in order to find area of rectangle=(len*bred)

base times height = area

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.

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