plz answer this question with figure please
Attachments:
Answers
Answered by
0
bisecter of angleD =2x
bisecter of angleC =2y
both bisecters meet at point O forming a triangle
x + y +angleO=180
multiply both side by 2
2x+2y+2angleO=360. 1 st equation
angleA +angleB+angleC+angleD=360
angleA+angleB+2y+2x=360 2nd. eq.
2x+2y+2angleO=angleA+angleB+2y+2x
2angleO=angleA+angleB
PROVED
bisecter of angleC =2y
both bisecters meet at point O forming a triangle
x + y +angleO=180
multiply both side by 2
2x+2y+2angleO=360. 1 st equation
angleA +angleB+angleC+angleD=360
angleA+angleB+2y+2x=360 2nd. eq.
2x+2y+2angleO=angleA+angleB+2y+2x
2angleO=angleA+angleB
PROVED
Similar questions