In figure 6.21, angle xoy=c, angle zoy=d,ow bisect angleyn yoz’ the line pew is perpendicular to ow. The lines ps, qt, rl are all perpendicular to on and the line queen is perpendicular to ps. Observe that angle XOW= (C+D)/2 and YOW = ZOW = (C-D)/2 . Deduce the result of the theorem 4

Arnav , 7 Years ago

Grade 8