Andychulo7809
07.10.2019 •
Mathematics
Uma wrote the following. 15=x x=15 which property of equality did she use?
transitive property of equality
substitution property of equality
multiplication property of equality
symmetric property of equality
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Ответ:
Ответ:
m∠X + m∠Y + m∠Z = 180°
m∠X + m∠Y = 180°- m∠Z
m∠Z > 180° - m∠Z
2 m∠Z > 180° /:2
m∠Z > 90° ( A, B and C are not possible )
D ) m∠X + m∠Y < 90°