Jawab yg keliling nya aja gapapa kok
Penjelasan dengan langkah-langkah:
keliling ½ lingkaran
= ½ × 2 × π × r
= ½ × 2 × 22/7 × 28
= 1 × 22/7 × 28
= 88 m
luas ½ lingkaran
= ½ × π × r × r
= ½ × 22/7 × 28 × 28
= ½ × 2464
= 1.232 m²
semoga membantu
maaf kalo salah
→ Keliling
K = ½ × 2 × π × r
K = ½ × 22/7 × 28
K = ½ × 2 × 22 × 4
K = 88 cm
→ Luas
L = ½ × π × r²
L = ½ × 22/7 × 28 × 28
L = 1 × 22 × 4 × 14
L = 1.232
[answer.2.content]
