tolong ya jawab 1-5 !!!! besok dikumpul plissss, kalo udah jawab makasih banyak ya !!!!

1. a = EF & ED
b = D & F
2. a = 5
b = 8
c = 100°
d = 8
3. a = 80°
b = 20°
c = 40°
4. a = 5 cm
b = OA, OC, OD, OE, OF.
c = keduanya 10 cm
5. a = PO & RO
b = PR
semoga membantu :)