Respuesta :

mhanifa

Answer:

  • B) Substitution Property of Equality

Step-by-step explanation:

According to the given:

  • m∠2 + m∠5 = 180° and
  • m∠5 = 90°

Substitute m∠5 into the first line to get line 3:

  • m∠2 + 90° = 180°

This is option B:

  • Substitution Property of Equality

Option C

This is substitution property of inequality

Here given two expressions

  • m<2+m<5=180°
  • m<5=90°

Substitute m<5 in eq(1)

  • m<2+90=180
  • m<2=180-90
  • m<2=90

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