For the catenary described, find:
(a) the slope where it meets the right-hand pole.
(b) the angle between the line and the pole.
a) (a) Slope = 15
(b) Angle = 45°
b) (a) Slope = -15
(b) Angle = 45°
c) (a) Slope = 15
(b) Angle = 60°
d) (a) Slope = -15
(b) Angle = 60°