Penjelasan dengan langkah-langkah:
r = 5 cm , π = 3,14.
Keliling:
K = 2 . π . r
K = 2 . 3,14 . 5
K = 31,4 cm
Luas:
L = π . r²
L = 3,14 . 5²
L = 3,14 . 25
L = 78,5 cm²
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Penjelasan dengan langkah-langkah:
r = 5 cm , π = 3,14.
Keliling:
K = 2 . π . r
K = 2 . 3,14 . 5
K = 31,4 cm
Luas:
L = π . r²
L = 3,14 . 5²
L = 3,14 . 25
L = 78,5 cm²