[填空题]
Eclipses happen on Earth because of an amazing coinciden)ugzqk;q 6 9nd+t8yu pce.xl8 d9o+2csy ;zu5lxq Calculate, using the information inside 9z+d q5u8;o2yxx lslcthe Front Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$