Question

in ∆ ABC , if
$b < a$
then​

Answer 1

Answer:

Correct option is C)

Using sine rule 

sinAa=sinBb=sinCc=2R⇒sinBb=2R⇒sin30∘2=2R⇒4=2R⇒R=2

Area of circle =πR2

⇒A=4π

So option C is correct.

Answer 2

Answer:

Then , angle b and c are smaller the angle a