tolong bantu jawab ya ka dan pake cara nya

10.
Jarak = 2,198 × 1/2 = 1,099 km = 1099 m

Keliling roda
= 1099 / 250 = 4,399 m

jari-jari
2 . 3,14 . r = 4,399
r = 0,7 m = 70 cm

11.
sudut keliling = 75/3 = 25°
sudut pusat = AOB = 2 × 25 = 50°

13.
Luas juring AOB
= 45/135 × 48
= 16 cm2