chanbaek6
4) K = πd K = 3,14 × d 78,50 = 3,14 × d 78,50 / 3,14 = d 25 = d ---> diameternya 25 cm 5) K = πd K = 3,14 × d 37,68 = 3,14 × d 37,68/3,14 = d 12 = d --> jika d= 12 maka r = 1/2×d r= 1/2 × 12 = 6 Luas = πr^2 L = 3,14 × 6 × 6 L = 113,04 maaf no 6-7 saya tidak tahu
K = 3,14 × d
78,50 = 3,14 × d
78,50 / 3,14 = d
25 = d ---> diameternya 25 cm
5) K = πd
K = 3,14 × d
37,68 = 3,14 × d
37,68/3,14 = d
12 = d --> jika d= 12 maka r = 1/2×d
r= 1/2 × 12 = 6
Luas = πr^2
L = 3,14 × 6 × 6
L = 113,04
maaf no 6-7 saya tidak tahu