sebuah lingkaran memeiliki diameter 10cm berapa keliling dan luas tersebut
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Jawaban:
Diketahui ➼
D = 10 cm
Ditanya ➼
K =
L =
Jawab ➼
K = π × d
= 3,14 × 10
= 31,4cm
L = π × r² ( d ÷ 2 )
= 3,14 × 5² ( 10 ÷ 2 = 5 )
= 78,5cm²
Rumus keliling lingkaran :
K = phi × d
Jawaban :
K = phi × d
K = 3.14 × 10
K = 31.4 cm
Rumus luas lingkaran :
L = phi × r²
Jawaban :
L = phi × r²
L = 3.14 × 5²
L = 3.14 × 5 × 5
L = 3.14 × 25
L = 78.5 cm²
➼ Cara cari Jari² =
Jari² = D ÷ 2
Jari² = 10 ÷ 2
Jari² = 5
Detail Jawaban
❐ Kelas = 6
❐ Materi = Bab 7 - Lingkarang
❐ Mapel = Matematika
❐ Kode soal = 2
❐ Kata Kunci = Cari luas dan keliling lingkaran
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