Matematika

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Tolong yahh kak makasih banyak
Tolong yahh kak makasih banyak

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2 Jawaban

  • (5x-5°)+(2x+10°) = 180°
    7x + 5° = 180°
    7x = 175°
    x = 25°

    sudut EBC = 2x + 10° = 50° + 10° = 60°

  • 2x + 10° + 5x - 5° = 180°
    7x + 5° = 180°
    7x = 175°
    x = 25°

    Sudut EBC :
    = 2x + 10°
    = 2 × 25° + 10°
    = 50° + 10°
    = 60°

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