the total distance around the rectangle called is perimeter
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The total distance around a plane geometric shape, i.e. one drawn on a piece of paper, is called the shape's perimeter.
Perimeter is the length of a closed line around an area. A rectangle is an area. If each long side of the rectangle is 12 cm and each end of the rectangle is 9 cm, the total length is 14+14+9+9 or 46 cm.
To find the area of the shaded part in a rectangle, you first find the total area of the rectangle by multiplying its length by its width. Then, you subtract the area of the non-shaded part from the total area to get the area of the shaded part. The formula would be: Area of shaded part = Total area of rectangle - Area of non-shaded part
Well, isn't that just a lovely rectangle you have there, friend! To find the perimeter, you simply add up all the sides. So for a rectangle that is 4 meters by 7 meters, you would add 4 + 4 + 7 + 7 to get a perimeter of 22 meters. Just imagine all the happy little footsteps that could walk around that beautiful rectangle!
The question is not quite clear in its meaning but in general the perimeter of a shape is the total distance around it.