180 Days of Self-Care for Busy Educators (A 36-Week Plan of Low-Cost Self-Care for Teachers

180 Days of Self-Care for Busy Educators (A 36-Week Plan of Low-Cost Self-Care for Teachers

Matematika

Soal terlampir!
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RULES :
• Pakai cara
• ngasal? report
• Rapi
• no bahasa alien (sjsjs)
_________________________

TvT​



Soal terlampir!
__________________________

RULES :
• Pakai cara
• ngasal? report
• Rapi
• no bahasa alien (sjsjs)
_________________________

TvT​

Penjelasan dengan langkah-langkah:

1) 4x + x = 90°

5x = 90°

x = 90°/5

x = 18°

2) CBD = 180° – 120°

CBD = 60°

3) x = 180° – 60°

x = 120°

y = x → sudut dalam berseberangan

y = 120°

4) 3x + 1 = 121° → sudut luar berseberangan

3x = 121 – 1

3x = 120°

x = 120°/3

x = 40°

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