Jawaban:
1) Keliling :
1/42πr
=1/4 × 2 × 3.14 × 10
=1/4 × 6.28 × 10
=1/4 × 62.8 cm
=15.7 cm
Luas :
1/4πr²
=1/4 × 3.14 × 10²
=1/4 × 3.14 × 100
=1/4 × 314 cm²
=78.5 cm²
Penjelasan dengan langkah-langkah:
semoga membantu
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Jawaban:
1) Keliling :
1/42πr
=1/4 × 2 × 3.14 × 10
=1/4 × 6.28 × 10
=1/4 × 62.8 cm
=15.7 cm
Luas :
1/4πr²
=1/4 × 3.14 × 10²
=1/4 × 3.14 × 100
=1/4 × 314 cm²
=78.5 cm²
Penjelasan dengan langkah-langkah:
semoga membantu