a² + b² = c²

a_1 = 2.8 (slider from -5 to 5)
A: (a_1, 0.0)
C = (2.62, 4.58)
b_1 = Line(A, C)
B_1 = Rotate(A, 90.0°, C)
α = Angle(A, C, B_1)
c_1 = Line(C, B_1)
c_2 = Segment(A, B_1)
a_2 = Segment(C, B_1)
b = Segment(C, A)
r: sqrt(a_2^(2.0) + b^(2.0))
B = Point(c_1)
c = Segment(A, B)
a = Segment(B, C)
Text2: "a² = " + (a^(2.0))
Text3: "b² = " + (b^(2.0))
Text4: "c² = " + (c^(2.0))
Text5: " \sqrt{ c² }  = c = " + c