Answer:
a=5 ;b=10 ;c= 5 ; d= 5√3
Step-by-step explanation:
sin 45=9/5√2
a=5√2 sin 45
a= 5
tan45= 5/c
c=5/tan45
c= 5
tan 30=a/d
=5/d
d=5/tan 30
d=5√3
sin 30=5/b
b= 5/sin 30
b= 10
