Question

4x 55° 6x 40° y Berapa nilai x, dan y?​

Answer 1

Jawab:

x = 20°
y = 25°

Penjelasan dengan langkah-langkah:

6x - 40° = 4x (Sudut luar berseberangan)
2x = 40°
x = 20°

(180° - 4x) + y + 55° = 180°
y = 180° - 55° - (180° - 80°)
y = 180° - 155°
y = 25°

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