Thinsat Area
Triangular Thinsat area
Assume rounded corners for circular electrochromic thrusters.
Start with two dimensions  thruster diameter D , and thrustertothruster spacing S defining the sides of an equilateral triangle within the body of the thinsat. We can decompose the thinsat into three kinds of area:
 the central triangle, between the centers of the thrusters
three outside 120° wedges of thruster
 three outside rectangular strips along the edges of the triangle
thruster to thruster spacing S 
cm 
17.32 
15.00 

thruster diameter D 
cm 
5.00 
5.00 

Height 
{ \sqrt{ 3 } \over 2 } S + D 
cm 
20.00 
17.99 
Width 
S + D 
cm 
22.32 
20.00 
Central Triangle area 
{ \sqrt{ 3 } \over 4 } S^2 
cm^{2} 
129.90 
97.43 
3 Thruster wedges area 
{ \pi \over 4 } D^2 
cm^{2} 
19.63 
19.63 
3 edge strips area 
1.5 * S * D 
cm^{2} 
129.90 
112.50 
total area 
cm^{2} 
279.44 
229.56 