jawab ya kk..........

L = π r ^2
L = 3,14 × 15^2
L = 3,14 × 225
L = 706,5 mm2

Kelas 4 Matematika
Bab Bangun Datar Sederhana

Luas Permukaan
= 1/4 . π . d . d
= 1/4 . 3,14 . 1,5 . 1,5
= 1,76625 cm²
= 176,625 mm²