Jawaban:
d = 20 cm
r = 20/2 = 10 cm
Keliling 1/2 lingkaran
= 1/2 πd
= 1/2 x 3,14 x 20
= 3,14 x 10
= 31,4 cm
Luas 1/2 lingkaran
= πr²
= 1/2 (3,14 x 10 x 10)
= 1/2 (31,4 x 10)
= 1/2 (314 cm²)
= 157 cm²
Penjelasan dengan langkah-langkah:
MAAF KALO SALAH;)
JADIKAN JAWABAN TERBAIK :).
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Jawaban:
d = 20 cm
r = 20/2 = 10 cm
Keliling 1/2 lingkaran
= 1/2 πd
= 1/2 x 3,14 x 20
= 3,14 x 10
= 31,4 cm
Luas 1/2 lingkaran
= πr²
= 1/2 (3,14 x 10 x 10)
= 1/2 (31,4 x 10)
= 1/2 (314 cm²)
= 157 cm²
Penjelasan dengan langkah-langkah:
MAAF KALO SALAH;)
JADIKAN JAWABAN TERBAIK :).