Kak tolongin dong kalo bisa pake luas dan kelilingnya y

1. L.Lingkaran = π × r²
= 3.14 × 12.5²
= 490.625 cm²
K.Lingkaran = π × d
= 3.14 × 25
= 78.5 cm

2. L.Lingkaran = π × r²
= 22/7 × 10.5²
= 346.5 cm²
K.Lingkaran = π × d
= 22/7 × 21
= 66 cm

NB :
π = 3.14 atau 22/7
Jari-Jari = d ÷ 2

Semoga Membantu :) Maaf kalo salah
``»•^°Mystic°^•«``

1) d = 25 cm
r = 12,5 cm
K = π × d
= 3,14 × 25
= 78,5 cm
L = π × r²
= 3,14 × 12,5 × 12,5
= 490,625 cm²

2) d = 21 cm
r = 10,5 cm
K = π × d
= 22/7 × 21
= 66 cm
L = π × r²
= 22/7 × 10,5 × 10,5
= 346,5 cm²