If you have only been sleeping on your side, the technician may come into the room at some point and ask you to try to sleep on your back. If you never sleep on your back or cannot sleep on your back you do not need to do this in the study. Should I drink alcohol on the night of the sleep study?
To calculate the cross sectional area (CSA) of a cable, you have to use a micrometer to verify its diameter, then divide the diameter by two to get the radius (r).With the ra â¦ dius we can calculate the CSA of the cable.    CSA = pi x r2 (Applicable to solid wires only).se the formula pi x r2 (3.14 x radius x radius) to get the cross sectional area. The formula works for all measurement units whether they are inches, millimeters, centimeters or others. An alternative is to use (pi x d^2)/4. (3.14x diameter x diameter divided by 4) You do not then need to divide the original diameter.
In other words: Rule: To find the area of a shaded region, subtract the area of the smaller figure(s) (for which you have a known formula) from the area of the larger figure (for which youâll also have a known formula).In the figure above, for example,The Area of the shaded region = (Area of the largest circle) â (Area of the circle with radius 3) â (Area of the circle with radius 2). Whatever is left over is the shaded region. The diameter of the largest circle is 10, so its radius is 5 and thus its area is 25Ï.n the figure above, for example, The Area of the shaded region = (Area of the largest circle) â (Area of the circle with radius 3) â (Area of the circle with radius 2). Whatever is left over is the shaded region.