Question

what is the answer for this. ..pls write it in detail

Answer 1

as angle ABC is 90 degrees we should equate angle ABD abd DBC to 90 degrees
then
2x-5+x-10=90
=3x-15=90
=3x=90+15
=x=105/3=35
so x= 35
then angleABD=65 DEGREES
and angle DBC = 25 degrees