Answer
Step-by-step explanation:
because tan(45) =1 . then a /6 =1 . then a =6 also sin(45) = [tex]\sqrt{2}[/tex]/2 .so a/b = [tex]\sqrt{2}[/tex]/2
.so 6/b = [tex]\sqrt{2}[/tex]/2.so a = 6[tex]\sqrt{2}[/tex]