calculate a cone angle

calculate the angle of a cone

Calculate the angle α of a cone based on large diameter d₁ and small diameter d₂ and cone length l

conical angle α decimal =	0
conical angle α DMS =	0
length l_s of the oblique side of the cone	0	mm

Enter the largest diameter d₁ (mm):		Ready to verify diameter1
Enter the smallest diameter d₂ (mm):		Ready to verify diameter2
Enter the length l (mm):		Ready to verify length l