29). Sudut P = S = siku" = 90°
Sudut P + S + R + Q = 360°
90° + 90° + R + 60° = 360°
R = 360° - 240° = ....
30). • Cari dulu sudut C,,,, A + B + C = 180°
55° + 65° + C = 180°
C = ......
• Setelah ketemu Sudut C, satu garis lurus jumlah nya 180°
P + Sudut C = 180°
P = 180° - Sudut C
Dicoba yaa!!
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Jumlah Sudut Segi empat = 360°
29). Sudut P = S = siku" = 90°
Sudut P + S + R + Q = 360°
90° + 90° + R + 60° = 360°
R = 360° - 240° = ....
Jumlah Sudut Pelurus = 180°
Jumlah Sudut Segitiga = 180°
30). • Cari dulu sudut C,,,, A + B + C = 180°
55° + 65° + C = 180°
C = ......
• Setelah ketemu Sudut C, satu garis lurus jumlah nya 180°
P + Sudut C = 180°
P = 180° - Sudut C
Dicoba yaa!!