The sum of the three interior angles of a triangle, the vertices of which lie on the surface of the earth, covering a vast area of several hundreds of sq kms, is :
(a) Less than 180° (b) Equal to 180°
(c) More than 180° but not less than 270°
(d) More than 180° but not more than 225°
(a) Less than 180° (b) Equal to 180°
(c) More than 180° but not less than 270°
(d) More than 180° but not more than 225°