Question

tolong besok dikumpulkan​

Answer 1

Jawaban:

8. (i) = 18°

(ii) = 47.5 atau 95/2

Penjelasan dengan langkah-langkah:

8. (i) 3x + 90° + 2x = 180°

3x + 2x + 90° = 180°

5x = 180° - 90°

5x = 90°

x = 18°

8. (ii) (3x + 5) + (x - 15) = 180°

3x + 5 + x - 15 = 180°

3x + x + 5 - 15 = 180°

4x + 5 - 15 = 180°

4x - 10 = 180°

4x = 180 + 10

4x = 190

x = 47.5 atau 95/2