Question

PLEASE HELP ASAP
EVERYTHING NEEDED IS IN THE PIC BELOW

Answer 1

AB=AOB×r

6π=9AOB

AOB=3π/2

The area of the circular sector is given by;

`a = ( (3\pi)/(2) )/(2\pi) * (\pi \: r {}^(2) )`

`a = (3\pi)/(4) * 81\pi`

`a = 60.75\pi`

`a = 190.85 \: cm {}^(2)`