Penjelasan dengan langkah-langkah:
K = πd
K = 3,14 × 20
K = 62,8 cm
L = πr²
L = 3,14 × 10²
L = 3,14 × 100
L = 314 cm²
Jawab:
Keliling lingkaran = 62,8 cm
Luas lingkaran = 314 cm²
jari-jaring lingkaran (r)
= diameter : 2
= 20 cm : 2
= 10 cm
Keliling lingkaran
= 2πr
= 2 × 3,14 × 10 cm
= 62,8 cm
Luas lingkaran
= πr²
= 3,14 ×10 cm × 10 cm
= 314 cm²
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Verified answer
Penjelasan dengan langkah-langkah:
K = πd
K = 3,14 × 20
K = 62,8 cm
L = πr²
L = 3,14 × 10²
L = 3,14 × 100
L = 314 cm²
Jawab:
Keliling lingkaran = 62,8 cm
Luas lingkaran = 314 cm²
Penjelasan dengan langkah-langkah:
jari-jaring lingkaran (r)
= diameter : 2
= 20 cm : 2
= 10 cm
Keliling lingkaran
= 2πr
= 2 × 3,14 × 10 cm
= 62,8 cm
Luas lingkaran
= πr²
= 3,14 ×10 cm × 10 cm
= 314 cm²