The angle ABC = 56^o as it is in the alternate segment to the angle CAE. Here, angle ABC is incorrectly calculated as 180 - 56 = 124^o. The angle is taken from 180^o which is a confusion with opposite angles in a cyclic quadrilateral. Opposite angles in a cyclic quadrilateral.Top tip: Use arrows to visualise which way the alternate segment angle appears: ![]() The chord BC is assumed to be parallel to the tangent and so the angle ABC is equal to the angle at the tangent.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |