Which property is used below? if 4xy2 = 8y2 and 8y2 = 72, then 4xy2 = 72 -reflexive property -substitution property -symmetric property -transitive property

Prove that quadrilateral is a rhombus.

What is the anwers for 9+2x=5x-3-x

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem