Lingkaran jari jari 10cmberapa luas berapa keliling
R = 10 cm
d = 20 cm
π = 3.14
luas = ? ( π x r² )
keliling = ? ( π x d )
luas = 3.14 x 10 cm x 10 cm
luas = 314 cm² ✓
keliling = 3.14 x 20 cm
keliling = 62.8 cm ✓
Jawab:
Keliling = 62.8 cm
Luas = 314 cm
Penjelasan dengan langkah-langkah:
keliling =
= x d
= 3,14 x 20 cm
= 62,8 cm
Luas =
= x
= 3,14 x
= 314 cm