S
Shai Gar
It's been a while since I provided one of these, so here you go...

Specific answers, rounded to 1 decimal place:
A = Center of Regular Equilateral Pentagram
B = 10cm
C approx 12.4 cm
D approx 14.8 cm
E = 72 degrees
F approx 22.8 cm
G approx 23.9 cm
General Results (trig functions in degrees):
C = B / (cos(36.5))
D = 2B * tan(36.5)
E = 72 degrees
F = B * tan(36.5) * tan(72)
G = B * tan(36.5) / cos(72)
I is nerd!
Where do you get the 36.5?
My geometry teacher taught me S***
I absolutely LOVED geometry at the college level!You know - right after calculus. hehe
I was good at geometry, but I haven't the memory for math. And it's not abstract enough for the likes of me haha