tolong dijawab yaaa pliss

4a: 7,5cm
4b: 7,5cm
5a:180°
5b:180°
6a: 9
6b: 9
7: 12,7cm
8a: 6,35cm
8b: 6,35cm
9a:90°
9b:90°
10a:180°
10b:180°

maaf kalo salah