A "cross section" is what occurs when you "slice" a given shape in a particular way, so that you can visualise the shape in two parts (with 2 new faces). The cross section is the surface (face) of the side which you have just sliced.
E.g If you imagine a cone, with the circular base resting on a surface. You now slice the cone horizontally, so that you now have a very small cone (on top), and a "truncated cone" (2 circular faces, top one slightly smaller, with sloping sides joining them) below. The "cross section" is the top face of the truncated cone, and the lower face of the small cone (both cross sections are the same!). i.e they are the new "sides" that you have created. These new "faces" are both circular, so if you were to find the area you would use the formula pi*radius^squared = area.
Average area
it means to do area
Messy area/area where pigs are kept
The surface area is the sum of all the shapes' area
The area of a shape is measured in square units
The 2 most common materials are cadmium or boron, due to their large neutron absorption crosssection.
A triangle does not have a cross-section but the perpendicular line of a right angle triangle meets the base at 90 degrees.
G.P.S. Said "avoid area" what dose in mean?
Because the fluid is allowed to expand in the nozzle it increases velocity to fill in the voids created by the shape of the nozzle. The convergent point of the nozzle acts like a bottleneck trying to slow the fluid and compress it into the reduced crosssection of the nozzle. As it leaves the minimum crosssection it expands into the divergent spaces of the nozzle increasing in velocity as it expands. ++_+ No: it gains velocity through the convergence but in the diverging section, trades velocity for pressure.
its mean to find the area and then multiply by four.
Average area
you mean find area? A=LxW
it means to do area
The area between the mean and 1 standard deviation above or below the mean is about 0.3413 or 34.13%
Location Mean AREA..
Area of Study/Trade
Messy area/area where pigs are kept