Distribution of raw stellar inclinations for 1139 RGB stars analysed by Gehan et al. (2018) (in blue). The red line represents an isotropic distribution in sin(i) derived from a fit to the histogram in blue. Inclinations measured for stars presenting three rotational components are in light blue, while inclination estimates for stars presenting one (two) rotational components are in green (orange). Inclination measurements derived for stars presenting two rotational components and a mean HBR equal to or above 8 for the m = 0 component are in violet. Vertical dashed lines represent the limits of 20° and 80° between which Kamiaka et al. (2018) consider seismic inclination measurements to be reliable in the general case. Vertical dot-dashed lines represent the limits of 8° and 86° between which Kamiaka et al. (2018) show that seismic inclination measurements can be reliable for Kepler stars.