Tolong ya no 24 pakai cara yg jwb sy doakan dpt pahala

Dik : r = 28 cm

Dit : Luas yg diarsir ( 3/8 L O )

Jawab :

Luas yg diarsir = 3/8 × Luas O
= 3/8 × phi × r^2
= 3/8 × 22/7 × ( 28 )^2
= 3/8 × 22/7 × 784
= 924 cm^2

smoga mmbntu☺