tolong di jawab ya
Jawaban:
1.kel = 2× phi × r
62,8 =2×3,14 × r
62,8 = 6,28 × r
r = 62,8/6,28
r = 10 cm (C)
2. kel = phi × d
kel = 3,14 × 10
kel = 31,4 cm (B)
3.kel = 2× phi × r
44=2×22/7 × r
44×7 = 44 × r
r = 308/44
r = 7 cm (A)
4.kel = phi × d
kel = 3.14 × 35
kel = 109,9 cm (B)
[answer.2.content]
