Jawaban:
Diameter: 80 cm
Keliling: 251,2 cm
luas: 5024
Cara:
Jari jari ke diameter:
Diameter = 2 × jari jari
Diameter = 2 × 40
Diameter = 80 cm
Jari jari ke keliling
Keliling = 2 × π × r
Keliling = 2 × 3,14 × 40
Keliling = 6,28 × 40
Keliling = 251,2 cm
Jari jari ke luas
Luas = π × r × r
Luas = 3,14 × 40 × 40
Luas = 3,14 × 1600
Luas = 5024 cm²
Semoga Membantu
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Jawaban:
Diameter: 80 cm
Keliling: 251,2 cm
luas: 5024
Cara:
Jari jari ke diameter:
Diameter = 2 × jari jari
Diameter = 2 × 40
Diameter = 80 cm
Jari jari ke keliling
Keliling = 2 × π × r
Keliling = 2 × 3,14 × 40
Keliling = 6,28 × 40
Keliling = 251,2 cm
Jari jari ke luas
Luas = π × r × r
Luas = 3,14 × 40 × 40
Luas = 3,14 × 1600
Luas = 5024 cm²
Semoga Membantu