Answer:

Step-by-step explanation:
Note that
sin135° = sin(180 - 135)° = sin45° =
= 
Answer:
F) 6/5
Step-by-step explanation:
6 divided by 5 = 6/5
Answer:
I think I explained the circle one before so I'll explain the left question because I wanted some points.
here,
area of circle is πr² which is given= 12 π cm²
so πr²= 12π
r= 2√3
d= 2r= 4√3
AB is diameter so AB= 4√3