If the surface is small enough, the length of each edge can be taken using a ruler or tape measure. If the surface is too large, say, the side of a building, you can use trigonometry. eg: for a building, take a point a known distance from the building's base and measure the angle from that point to the top. the building's height is
tan(angle) x distance from base
A plane is a flat surface with only two dimensions. No real planes are found in space, because all matter has 3 dimensions.
An isometric triangle is a 3 dimensional triangle shown on a flat surface or in 2 dimensions.
on a 3D object to find the surface is to look on all flat surfaces. yourwelcome
It does not have a flat surface.
A flat surface, like a sheet of paper, with no edges (ie: it goes on and on and on and on....) or boundaries. What you're describing is a 2 dimensional plane. No, not plane like an airplane. A plane is simply a flat "sheet" that goes on forever in 2 dimensions: left/right (wide) and up/down (tall).
A shape
A plane is a flat surface with no thickness. Our world has three dimensions, but there are only two dimensions on a plane.
A plane is a flat surface with only two dimensions. No real planes are found in space, because all matter has 3 dimensions.
Both Plains and Plateus have long dimensions,flat surface.
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Area is a 2 dimensional quantity, finding it for something in three dimensions does not make sense. If you want to find an area-like quantity for 3 dimensional shapes, look into surface area, which is the area of each surface of the not flat shape.
An isometric triangle is a 3 dimensional triangle shown on a flat surface or in 2 dimensions.
One can find specifications for flat panel TV stands on the 'Home Cinema Guide' website. They have specifications and dimensions for a number of flat panel TV stands and wall mounts. One can also find dimensions on the websites of any retailer that sells them such as Amazon or Walmart.
on a 3D object to find the surface is to look on all flat surfaces. yourwelcome
To calculate the volume of a flat surface, you need to determine the area of the surface multiplied by its thickness or depth. This will give you the volume of the flat surface.
A triangular prism has 5 sides. Three are rectangles and two are triangles. If you fold the net out flat you can get the dimensions and find the surface area. Each rectangle is length by width. And the triangles should be congruent and remember are length times height divided by two.