Question

nilai π pada gambar dia atas adalah. kak tolong di jawab cepat soalnya besok mau di kumpulkan


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Answer 1

1. 180-57° = 123°

2x + 5° = 123°

2x = 123° - 5°

2x = 118°

x = 118°/2

x = 59

2. 2/7 dari sudut pelurus = 180 × 2/7 = 360/7 = 51.4 °

3. 2x + 8 + x + 13 = 90

3x + 21 = 90

3x = 90 - 21

3x = 69

x = 69/3

x = 23

sudut ABD = 2(23) + 8 = 46+8 = 54°

4. Penyiku = 90

2/3 dari sudut A

90 × 2/3 = 180/3 = 60°

5. 9y + 54 = 90°

9y = 90 - 54

9y = 36

y = 36/9

y = 4°

lalu x + 2x = 90

3x = 90

x = 90/3

x = 30°

Lalu nilai X + Y = 30° + 4° = 34°