9 . I n t h e g i v e n f i g u r e 2 , i f l ∥ m a n d n i s a t r a n v e r s a l s u c h t h a t ∠ 8 : ∠ 5 = 13 : 5 , f i n d a l l t h e a n g l e s . Share with your friends Share 0 Shruti Tyagi answered this Dear Student, since ∠8∠5=135let ∠8=13x and ∠5=5xThan ∠8+∠5=180 n is a straight line⇒13x+5x=180⇒18x=180⇒x=10Hence ∠8=13×10=130∠5=5×10=50now ∠6=∠8 and ∠5=∠7 --vertically opposite angleshence ∠6=130 and ∠7=50now ∠5=∠1 and ∠6=∠2 --corresponding angleshence ∠1=50 and ∠2=130again ∠1=∠3 and ∠2=∠4 --vertically opposite anglestherefore ∠3=50 and ∠4=130 Regards, 0 View Full Answer Anugrah Verma answered this Solution 0