Panjang diameter sebuah lingkaran 44 cm. Luas lingkaran itu.....cm²

r = d:2
r = 44 : 2
r = 22

L =Πrr
= 3,14×22×22
= 1.519,76 cm2

L = π × r × r
=22/7 × 44 : 2 × 44 : 2
= 22/7 × 22 × 22
= 22 /7 × 441
= 22 × 63
= 1.386 cm²
Semoga membantu ^-^