Keliling lingkaran yg luasnya 154 m² adalah.....M pake cara pliss A.22 B.44 C.88 D.228

Diketahui :
L = 154 m²

Ditanya : Keliling (K)?

Jawab :
r² = L/π
r² = 154/22/7 = 154×7/22 = 49
r = √49
r = 7 cm

==>
K = 2πr
K = 2 × 22/7 × 7
K = 44 cm (B)

Smoga membantu :))