kakak tolong dibantu.. besok dikumpulkan

Penyelesaian :

5.
a. 1/3 x 180°
= 180°/3
= 60° → Sudut Lancip

b. 2/3 x 360°
= 720°/3
= 240° → Sudut Tumpul

c. 180° - 5/6 x 180°
= 180° - 900/6
= 180° - 150°
= 30° → Sudut Lancip

I HOPE THIS HELPS