Bantu please?? saya sgt butuh jangan ngasal…​

Jawaban:

Diameter (d) = 28 m

Jari-Jari (r) = 28 ÷ 2 = 14 m

Sudut Pusat (alpha) = 120°

Luas Juring = alpha/360° × Luas Lingkaran

= 120/360 × π × r²

= ⅓ × 22/7 × 14²

= ⅓ × 22/7 × 14 × 14

= ⅓ × 44 × 14

= ⅓ × 616

= 205,33 m²

Panjang Busur = alpha/360° × Keliling Lingkaran

= 120/360 × π × d

= ⅓ × 22/7 × 28

= ⅓ × 88

= 29,33 m