Question

find the area of sector whose radius is 6 cm and lenght of corresponding arc is of 12cm

Answer 1

area = lr / 2
        = 12 *6 / 2
         = 72 / 2
        =  36 cm2

Answer 2

we have area of sector=
lr1/2
where l=length of arc
r=radius
1/2×6×12
6×6=36cm²