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To find the perimeter of the base, you must add all the numbers on the base together!
It isn't clear how you would define the "perimeter" for a 3D figure. The base is the product of length x width.
how can you find the perimeter of a cone i.e. a 3d shape!
In order to find the perimeter of a 3D rectangle you must gather the lengths of the known sides, calculate the missing rectangular values, and use the formula for perimeter.
To find the perimeter of the base, you must add all the numbers on the base together!
You can't find the perimeter of a cone because it's a 3D shape, but you can find the volume; the formula is 1/3x3.14xr2xh (r= radius of the base/ h= height).
There is no way to find perimeter from a 3D figure. However, you can find the perimeter of a side of a triangular prism by using perimeter formulas for a parallelogram or triangle.
Height = (Perimeter/2) - Base
perimeter (P)=2(length+base) find length, area = length * base = (p/2-base)*base
Depends on the problem; many 3D figures have 2D faces/shapes within them. One can say "find the perimeter of a cylinder," and the question could be interpreted as finding the perimeter of one of the circular bases of the cylinder. Use common sense, and find out what the question is asking.
2*(base) + 2*(height) = perimeter
To find the perimeter of a rectangle simply add the length and width then double your answer.
The same way you find the perimeter of a rectangle, add the side lengths