Question

please answer this question...
from chapter- triangles

Answer 1

if AB || CD then
angleBCD =angle ABC(alternative angles)
similarly angleADC =angle DAB
also angleCOD=angle AOB (vertically opposite)
this implies triangle OAB similar to triangle ODC

this implies the ratio of the sides is equal..

(2x+4)(x+1)=(4x-2)(4)

solve further for the exact value of X..


hope it helps..