r = 12 cm
Lp = luas ½ bola + luas lingkaran
Lp = ½ x 4 phi r2 + phi r2
Lp = 2 phi r2 + phi r2
Lp = 3 phi + r2
Lp = 3 phi + 122
Lp = 3 phi x 144
Lp = 432 phi cm2
Bola C
r = 12 cm
Lp = luas ½ bola + luas lingkaran
Lp = ½ x 4 phi r2 + phi r2
Lp = 2 phi r2 + phi r2
Lp = 3 phi + r2
Lp = 3 phi + 122
Lp = 3 phi x 144
Lp = 432 phi cm2
Bola C
Editor: Rian Ade Maulana