Angle Construction
Author: Guru

Constructing point, segment and angle
Labeling objects
Formatting objects
Measuring objects 
Moving an object 
Style Bar and Tool Bar Help
Algebra view
Saving and exporting our file.

What did we learn?

A = (-5.5, 2.92)
B = (5.3, 2.84)
f = Segment(A, B)
C = (1.18, 8.88)
g = Segment(A, C)
α = Angle(B, A, C)
a = true