Multiply the width (w) by the height (h). Or (w) x (h) = a (area). The same goes for any shape, except rounded figures, i think
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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
A = lw Area of a rectangle = length times width
The formula for finding the perimiter of a rectangle is add up all of its sides
The area formula for the parallelogram is related to the area formula for a rectangle because you can make the parallelogram into a rectangle to find the area.
A rectangle has no volume, it is a 2 dimensional object.