Jawaban:
Diketahui = 25 cm
r = D/2 = 12,5 cm
L= πr² = 3,14 x 12,5² = 490,625 cm²
K = 2πr = 2 x 3,14 x 12,5 = 78,5 cm
a. 490,625cm²
b. 78,5cm
Penjelasan dengan langkah-langkah:
luas lingkaran
=3,14×r²
=3,14×12,5²
=3,14×156,25
=490,625cm²
keliling lingkaran
=3,14×d
=3,14×25
=78,5cm
(maaf jika salah)
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Jawaban:
Diketahui = 25 cm
r = D/2 = 12,5 cm
L= πr² = 3,14 x 12,5² = 490,625 cm²
K = 2πr = 2 x 3,14 x 12,5 = 78,5 cm
Jawaban:
a. 490,625cm²
b. 78,5cm
Penjelasan dengan langkah-langkah:
luas lingkaran
=3,14×r²
=3,14×12,5²
=3,14×156,25
=490,625cm²
keliling lingkaran
=3,14×d
=3,14×25
=78,5cm
(maaf jika salah)